No, I don't think this is engineer brain. That's something more neutral, more similar to a hacker mentality, IMO.

This is wealth brain.

> A lifetime of bending your brain in one direction, being well compensated, being told you are smart... it leads to tremendous gaffs once you step out of your little specialized world.

That's not explained by simple engineer brain, plenty of us engineers are not in this position. But those who are wildly, exceptionally successful under capitalism, get their ideas (good and bad) reinforced more and more. They look at their success - money, power, fame, influence, and believe it is due to the correctness of their ideas, not due to the exact stupidity of humans they look down upon.