Around and past an IQ of about 135, work boredom is a chronic risk and sometimes a disability. If you're in this set, entry-level banking ("analyst" programs) and private equity aren't where you want to go. Past 135 (much less at 140, 150, or even 160) even 8 hours per day of grunt work is impossible, much less 17.
There are plenty of 135+ in finance, but either they go for trading and quant or even IT roles, or they move to "the soft side" at a higher level: usually at least VP.
So, yes, these people are above average in talent, but they're not "the most talented" in our generation. Depending on bonuses, they're not even the best paid. Oh, and they're the ones who go on to become VCs (not you, programmers, despite your superior talent).
The 23-year-olds making half a million in private equity do exist, but they're (a) uncommon, and (b) not especially smart, just connected and unusually able (top 1%) to grind out hours. If you want to become a Master of the Universe, the optimal IQ is probably in the low-mid 120s: enough that you can build something in Excel, but not near the level that brings boredom or anti-authority risk.