So you don't think talent is attracted by higher salaries? Should everyone's salary just be the same, forever?

Would you yourself not switch a job because they offered more money? What you're saying doesn't make any sense.

No, but salary is an s-shaped curve. The higher you go, the less the additional benefit, if any. It totally does make sense, because you reach levels where differences in performance cannot be predicted at all. It's naive to believe otherwise.