Sorry, I'll try and be more direct :)
> Do you think the prices offered on freelancing sites are fair?
Yes, I think they are 'fair'. This is how a free market works - clients are free to offer whatever price they like, devs are free to take on the jobs they feel make sense.
> Would you be willing to work for such prices?
It depends on the job but, taking $100 for 10 hours of work as an example - No. But just because such jobs don't make financial sense for me, doesn't mean the same for other economies.
> Why do you care which ISP someone uses when committing to a repository or login to VM?
I don't, nor did I claim to. What I care about is market rates.
You don't even have to move to another country, salaries vary wildly throughout a country and there are obvious outliers think NYC, SV or even London. And then we are talking about contracting/freelancing/remote work. If you want to have a job done, why do you care what is the purchasing power of the contract fee in a given country?
By the way, if dev A and dev B works for the same company on the same project in the same position one in location A and the other in location B, they should be equally compensated.