The ICPC has plenty of elite competitive programmers. It's an activity that "peaks" in importance around college, and not many keep training a lot after participating.

Every year there are multiple "Legendary Grandmasters" in the competition. That's >3000 Elo in Codeforces. I'd estimate it takes a similar level of skill/effort as becoming a Chess Grandmaster.

And even those that aren't at that level are very competent at it. The average ICPC participant is likely "smarter" than the average MIT/Harvard CS student for some reasonable measure of "smarter".