I'd say the motivation is mainly intrinsic. I don't know about you, but I've generally just felt better when I've worked like I care. I've found there to be a c

I'd say the motivation is mainly intrinsic. I don't know about you, but I've generally just felt better when I've worked like I care. I've found there to be a correlation between my overall happiness and well-being and the effort that I put into work. This doesn't mean going overboard and working overtime, just to care about what I'm working on. I suppose the extrinsic motivation would not be noticeable immediately but should be noticeable over time (ie. taking a 10 year view) as you would (hopefully) earn more than peers who just do the minimum to avoid being fired. If you get laid off, I'd guess you'd also have an easier time finding a new job as well.