Well, everyone's time as beings on this earth is equal
this is the point...
And it follows (I believe), that every work is equally important. My work is not more important than the work of a janitor or the cleaning person. People love to think, their work is more important than that of others... It is the same like saying ants or insects are not important, who needs spiders? I think that idea is related to Gandhi's Tolstoy farm....
if we pay people less than other people, those less paid people are basically serving other people. I don't think that people should be servants to other poeple.
Time is equally valuable to everybody and should be paid the same. I have no problem with that, I would be happy if a nurse in a hospital would earn the same money as I do or vice versa. Then people could concentrate on more important stuff ...