There is also a risk in being in a position of power and being seen to assign yourself the most interesting work. I have seen this happen in one team, our manager was a good guy, but somehow he always used to get the sexy work like playing with new kit, and the team got the gruntwork. It led to resentment and undermined his authority (tho' because he was a good guy, as soon as he became aware he was doing this, he stopped).