Why do we care about how many hours people are working? Good looking people make tens of thousands of dollars for showing up at a party for 1-2 hours. Influence

Why do we care about how many hours people are working? Good looking people make tens of thousands of dollars for showing up at a party for 1-2 hours. Influencers make thousands for recommending a product in a few minutes. Tech workers have a valuable and, in the grand scheme of things, rare ability that is immensely useful to Humankind. Perhaps some very talented people can do top quality work for a couple of hours a day, but deliver immense value in these two hours. Is this a reason for concern?