Regarding the first point: owners typically pay themselves a salary in addition to owning the company and thus benefit from both. Employees do not have this advantage.
The two problems are not mutually exclusive, and certainly unskilled labour is a significant problem for a good fraction of the population; but if this were the only problem, then we wouldn't see the amount of wealth concentration and decoupling of productivity from income that we observe.
The two problems are not mutually exclusive, and certainly unskilled labour is a significant problem for a good fraction of the population; but if this were the only problem, then we wouldn't see the amount of wealth concentration and decoupling of productivity from income that we observe.