For the most part, we have to leave it to institutions and businesses to decide how to hire employees and price services, confident that successful enterprises are usually better able to make this call than legislatures or judges.
Co-operation and competition are not mutually exclusive.
It is possible to compete and co-operate at the same time.
Social co-operation may benefit the poor more than the rich, meaning social justice should favour the rich and not the poor.
Things the rich bring the poor
- Technology (medicine, education etc)
- More taxes paid even at a flat rate