This is certainly true (I've worked both sides of the fence in terms of types of firm). To add a generalization, my rule of thumb is the variable part of compe

This is certainly true (I've worked both sides of the fence in terms of types of firm). To add a generalization, my rule of thumb is the variable part of compensation varies most for the domain experts. So in technology for the sake of technology style companies like Google, total comp shoots up based on stock/bonuses. In reality, Google is an advertising company so presumably the ad sales folks bringing in whales aren't hurting either. Naturally numbers get skewed by overpaying to keep certain people (i.e. overshoot on retention packages), and given large scale, there are always some overpaid due to lucky timing/placing. Such is life! In hedge funds, the traders get the big bonuses, but the programmers get a solid salary so lower bonuses don't hurt quite so much. Luck also plays a part for those folks var comp. For those in hft, I'm aware of a few places where given the right mix of skills, someone who likes to think of themselves as a programmer can get the trader style bonuses.