They used to not be paid so much in the past. What's the scientific rationale that they should be pay more than before? I don't think there's any science involved on either side, it's simply a cultural practice that has arise with the growth of corporate earnings. On the flip side, if average worker comp has arisen only 12% since 1978, maybe that's not a scientifically-determined outcome either.
https://www.cnbc.com/2019/08/16/ceos-see-pay-grow-1000percen...
https://www.epi.org/publication/ceo-compensation-2018/