I doesn’t require a ground up rework. The easiest idea is real people can get an official online id at some site like login.gov and website operators verify people using that api. Some countries already have this kind of thing from what I understand. The tech bros want to implement this on the blockchain but the government could also do it.
At meta and google they certainly don’t make more, the L6 manager and engineer bands are the same. Same for l7. At director level the bands are so wide it may not be the same between ic and managers even if it is in theory.
That’s positioning and marketing too since you don’t really need the performance. For 99% of the time you use the car they’re about the same. If only life were all twisties and race tracks, but in reality it’s mostly traffic jams.