There was always underclass, and potentially will always be, throughout human existence; it is just that its survival in future, or condition of elites for that matter, has become increasingly uncertain with the growing probability of AGI realization.
@Boenau It appears to me that living in low-density settlement while having reasonable access to compatible people usually helps a potent soul to flourish.
It is not yet proven that non-human beings do not have abstract thoughts.
Similarly, the statement that humans have free abstract thoughts, is also not proven yet.
Both facts have immensely profound implications.