When you reach a position where your bonuses, stock options, retirement benefits and so on are all tied to quarterly performance, you may find that your immediate interests align much more closely with the company than with your fellow workers. And since capitalism is built on that sort of short-term thinking, it's much harder to convince these guys that they'd be better off aligning with the whole of the working class. I don't think these types are necessarily beyond hope and they certainly aren't representative of all PMCs, but I get why people are quick to write them off.