I agree with those ideals, but this is like saying that only nepo-babies are likely to be professional basket weavers.

I don't see that as a meaningful bifurcation of kings and lords. Some people can afford the 99.9999% probability risk of investing 15 - 20 years of ultra-intensive training and coming up with literally no career and no method of adding value to their community that's even remotely correlated to the level of investment in their training. Most people cannot.

It is good if that is as few people as possible. And it is good if that person isn't literally starving afterwards (i.e. can just collect rent from their parents' accounts)