There is also the vaultingly ambitious employee. Someone who is both clever and also prepared to do anything to get a promotion or pay rise - even if that means causing chaos, using other employees as collateral damage, etc.
Eugh - I hate people like that. In my last job, the whole marketing team (8 people) were like a group of wrecking balls smashing through the company trying to meet their own individual goals. It was chaos but the MD was a marketing guy himself and couldn't see that the marketing team were doing a whole heap of damage to the company.
I played the heretic role for a while, but eventually I quit because it was a loosing battle and my moral had gone through the floor.
