Originally Posted by Expat
You're using the word "materialistic" when you actually mean "consumeristic". You are saying that those quadra descriptions say that Gammas are "materialistic", and then you argue that that's wrong, saying that they are not, but actually arguing that they are not "consumeristic". That is, a straw man argument -- you address not what socionics really says, but your erroneous interpretation.
The two Ni quadras - Beta and Gamma - tend to focus more on the longer term than the two Si quadras, Alpha and Delta. That's what the "materialistic" bit in Gamma is about; a focus on longer-term prosperity rather than short-term comfort; so it's anti-"materialistic" as per your definition.
Therefore, what you wrote about SLI and ILI buying or not a motorbike, etc, rather than being a case against those quadra themes, it's a case for it.
So the problem is not the descriptions, it's your erroneous interpretation.