Marketable skills should be better paid? Of course. Should it pay 10~15x more to be writing scripts at Google than to be frying burgers at some place? I don't think so.
If you care about people you should care that everyone has a minimum liveable wage, not that some should suffer because they can't/won't learn a high paying skill. What if instead of 10 to 15x a job at Google paid 5x what a burger flipper earns? It's still a quite good salary, incentive enough to not stop people from trying to learn better paying skills and would make the lives of people who aren't at that level a bit more comfortable.
Remember the human.
What is this "should" you speak of?
I sincerely don't understand if this was a jab towards me on some kind of "invisible hand of the market" argument or the complete opposite.
Between those two, it was the former. What I mean is that I don't see that people are obliged (_i.e._ should) trade with each other at all. If they nevertheless choose to do so, I don't see that every good or service should cost the same, or have a maximum difference in price.