Lowering the costs means you get higher margins, which in turn means you can grow the company larger then other similar companies before reaching the marginal r

Lowering the costs means you get higher margins, which in turn means you can grow the company larger then other similar companies before reaching the marginal return (the point where growing wont increase profits). So a company with low expenses can grow really big - making the founders very rich. Working in an area that produce revenue - what does that even mean? Should you work in marketing in order to increase demand ? Rather then in production ?