I get were you're coming from and the sight of my bosses' BMWs M series reminded me daily that I'm making money mostly for someone else, but money doesn't last long as a motivator.

The novelty wears off pretty quickly and you're left with less motivation for the same pay.

I should know - for years annual earnings grew at a rate of over ten percent. Still, in and of itself it wasn't enough for me to stay motivated.