The point is that if you want to make serious money, there are generally two routes (of course there are exceptions):
1. Consulting
2. Climb the corporate ladder
Each of these (again, in general) require much more work than the standard 40 hours per week especially if you want to climb higher.
For me personally, I decided several years ago that I was done working long work weeks and stuck to 40 hours. I was kicking ass, getting awesome reviews, etc, but no opportunities opened up for me because I made management look VERY good. In retrospect, maybe I should've made more demands or jumped around more (I've had 3 jobs in the last 17 years) but that entails risk and I'm pretty risk averse. Heck, even coming here (a nationally known place with top tier benefits and perks) was a risk.
At any rate, for me right now, money is not an issue. I travel globally, have a nice house, possessions, and can buy just about anything I want. I could make more (potentially much more), but that isn't what is important to me. What is more important is that I be happy with my job and right now, I'm not. So in the spring, I hope to move on and in the meantime, get some more certs (trying to decide -- PMP or more tech certs?)