The entire point of the stock market is to get capital to companies to allow them to do things that may increase wealth (could be local, state, country or globally). Successfully doing this means the companies he supported did well.
> The entire point of the stock market is to get capital to companies
Only if the shares are newly-issued, though.
Usually your counterparty is just someone with different cash flow needs, or who disagrees with you about the future. No benefit accrues to the company.
