It is a pretty well known fact that in many cases the only way to move up or get paid more is to move to a different department, team, or company. Hell, there are so many cases where people leave the company because they weren't getting paid well only to be replaced by people who cost the company more than what the person wanted in the first place.

It's a silly thing, but sometimes you have to leave to get what you want, even if you shoudln't have to.