What are my chances of getting into an Ivy League school?

I know a lot of smart people who had high SAT scores that could of got them into good schools, but instead chose to go to a cheap college and save money. Their theory was regardless of what school they went to they would still end up in a high paying job because of their intellect not what college they went to. I know an actuary who got a 740 on the math section of his SAT who makes over $120k a year. All he needed was bachelors degree in Mathmatics/ Actuary Science from a local university he commuted to that was very inexpensive. He has been an actuary for about 6 years now and passed all five of the tests. He knew he could get into a good school, but he thought it was a waste of student debt since either way he still was going to be making 6 figures from his bachelors degree.