I do agree with this. I actually do it, too (head straight for a problem, that is), and for the same reason, which is to reach the best destination for the group (great, great description, by the way) but perhaps I do it with slightly more diplomacy. My impression is that ILI's don't seem to care that much about how they are seen. I find that pissing people off tends to burn bridges and makes it harder to influence them in the future. An ILI who is too contentious can get assigned to a position and can get stuck there, because of a perceived lack of adaptability.
I don't see ILI's in a bad light. They are a type with which I form almost instant, very valued friendships. One of my oldest friends (since I was 12) is ILI, and so is my financial advisor. They are very rational, very dependable, usually very intelligent, can be extremely funny, and while they can be a total dick to you (usually at first meeting), I was surprised to find that they have stronger Fi than I do, and are therefore better at valuing people than I am.
My comment about ILI's being "asocial bastards who don't give a fuck" was actually a description of how I believe they are seen by the general population. Add rational introvert to the description, and you get the full snapshot*, but not an in-depth analysis. For the latter, it is just better to hang out with them.
* This is why I believe, in literature and the movies, that ILI's are most often portrayed as Villains Who Will Personally Fuck You Up, while LIE's are typically portrayed as Villains Who Will Fuck Everything Up, As Far As The Eye Can See.