I think its exactly the people that get promoted disproportionately to the rest. That's their thing...

EDIT: I probably misinterpreted your point, I think you refer to "people that used to go for ibanking/MBB consulting, basically high achievers motivated by achievement in the eyes of others"

Why? Are you saying that person with good social skills can't work as a dev? I don't see the connection.

I've heard guys say "My goal is to stop coding after two years in the industry".

It's tough to stay motivated and learn constantly when you don't like engineering and coding...