It would be even better if the costs were a percentage of your income. You have 1B income, well it is going to cost you 5%. You earn 20k? You will pay 1% of thi

It would be even better if the costs were a percentage of your income. You have 1B income, well it is going to cost you 5%. You earn 20k? You will pay 1% of this. Why the difference? Because out of these 20k, you maybe need 15 to live. For a 1B company, the "need to live" is probably much lower. This is similar to how income tax brackets work in Europe.