So we should accept that 98
0+% of people can or gave a successful life, yet should support the gifted <10% in their journey to extract the world's wealth?
I don't want to spend my tax money educating future bankers.
If you're talking about the top 10% of kids, you're obviously not talking about [just] the hyper-elite future bank executives (who are probably what, the top 0.0001%?) The top 10% of students is quite large would include all manner of engineers, doctors, etc. People who play vital roles in keeping our civilization going, not just parasitically leeching off interest rates or whatever it is banking executives do.
Most of those future executives are probably in private schools right now anyway.
You changed the subject from being in gifted to being gifted. You can exist outside of gifted and still have a high IQ and be a successful person. So, no.