I had put down what I thought was the American castes but it's not so strict here in the US.
It's something like this but
SF = Service
ST = Military Industrial Complex
NF = Entertainment and Religion
NT = Innovation and Business
I see it this way.
The dominant dialectic always marginalizes the other groups politically. In the US, the citizen controlled volunteer army and separation of church and state are examples of the political marginalization of the NF/ST clubs.
In China, this was entirely different as the ST and NF Soldiers and Scholars entirely dominated political discourse. Merchants were a marginalized class, in fact the lowest class in Confucian philosophy. NT's are a heretical bunch and thus sort of fit into this heretical area of influence in China. Heresy and innovation are fundamentally similar course of action and are anti-orthodoxy.
In the US, much of the laws and system of checks and balances were placed in order to prevent a situation where stagnation occurs which is what typically happens when theology, "humanitarian" and soldiers take over. For a long time continental Europe and much of the world was controlled by such a group of people and the heretics decided to travel to the US or Britain.
I need to be very clear on Scholar class because American ideas of scholastics aren't the same as Confucian ideas.
Confucian ideals of scholastics revers literature, painting, calligraphy, chess. These are ethical valuations, not logical ones. Much of the egalitarian philosophies in China were dispense with by the First Emperor who is some sort of Beta ST, who himself was deposed by the Confucian Han Emperors who were likely Delta.
Philosophies like
http://en.wikipedia.org/wiki/Mozi and Taoist thought were largely suppressed or at the very least politically marginalized.
Scholastics for the sake of scholastics is not really a NT thing, they are called researchers but this is merely what they do not what their purpose is. The purpose is always do something concrete. This is because they all have strong Te.
American Scholastics isn't the same as say religious scholastics or Confucian scholastics, it's geared towards business, science but allow for many other studies to take place in case they prove fruitful. It's actually something that is protected nominally in the US where as other societies in the past have been very antagonistic to this sort of thing and would much rather discuss how many angels on the head of a pin and such religious subjects. Suppression in the name of blasphemy and heresy is a common course of action of NF's because they have influence over the ST club. If there is one thing that NF "humanitarians" are good at it's that they are good at indoctrinating others and being indoctrinated. This is because their weak logic and good social skills allow them to be influenced by all sort of mental deceptions as well as dispense them. Their strong intuition grants them a good sense of imagination but also make them prone to fantasy. NT's are different, they use logic to experiment on their intuitions and test them against reality. This is why they're always focused on concrete real changes rather then some abstract preference or comforting delusion. They might seem idealistic and you may not understand them, but that is not their aim, rather their aim is something much more concrete, otherwise, what's the point.
SF's are service oriented people, they have a need and ability to deal with people day to day and do something.
Why is entertainment sometimes more NF then SF, it is because much of the time it's not something that is a day to day thing, sometimes it is but often it's a creative thing where a NF can compress their thoughts and put out a show.
The idea of Scholastic culture or tradition is actually pretty lame, because the purpose of much NT research is to dispense with much of culture and tradition entirely, especially when they conflict with "progress".
Ideas about business is a fundamentally NT sort of thing. The basic relationship of business employment is material benefit for work.
ST is sadly forced labor. This is what largely happened in the Soviet bloc and somewhat in China during their recent revolutions.
NF often have the idea of work for salvation, which also leads in a way to slave labor.
Of course ST/NF get into business too, but they often have a wage structure that has large discrepancies between the highest inner group vs the lowest service people.
Gamma business are typically very good places to work as long as you provide something of value in your actions. The wages are fair and typically something above market value.