Lmao It is like that in every freaking sports, small teams who suddenly get good, sell their players for good money to bigger teams, and players get better salaries. That is literally how it works.
It even works like that in normal industries, small companies who start to have success, get bought by bigger ones, or their employees get bought out and the cycle continues
Ence players probably get paid no more than 5k per month. Imagine you would get offered 20k, would you refuse ? Because if you do then you are dumb i'm sorry, especially when esports careers are so short.