Duh, of course there are people without degrees that are less intelligent, but that is not generally true. It's just the choice an individual makes. You don't have to be smart to go to university and college and get a job that pays $500,000+ a year. All you need is determination and motivation. I didn't say it was easy, or anything. But you don't need very high intelligence.
Why do you think you hear about stupid things happening in office places and places where you'd think only "intelligent" people would be? Because stupid people can make it there too! There are stupid/ignorant people everywhere, even you or I could be one! *Gasp*
Intelligence doesn't really help you much in todays world, if you have everything else you need (good childhood, parents, motivation, etc). But if you have most of the things you need, AND you are above average intelligence, then it is very nice to have.