Leaving for more money is not the same as not being motivated by money. If they can make more money for doing the same/similar work it's a matter of weighing an

Leaving for more money is not the same as not being motivated by money. If they can make more money for doing the same/similar work it's a matter of weighing any tradeoffs (relocating, potential job stability, etc.) In fact, those variables will be the ones affecting whether that's "a little more money" or "a lot more money". Assuming there aren't other issues - "make more money for doing something you're already doing" is a no-brainer option to take without having any ties to the motivation of their work. I enjoy what I do and spend time improving myself not out of motivations for a raise (though that'd still be nice) but because I want to improve myself and enjoy it. But if I was offered double my current salary it'd be tough to refuse. If offered triple my current salary - my bags would already be packed.