Charitability and profitability are not opposites. Perhaps you interpret for-profit as "grab as much as you can" but it does not necessarily have to be so. You can keep 51% ownership to yourself and take 0 pay as a compensation for your work and reinvest all the profits into the organization, making it effectively non-profit, while the 49% shareholders will make their gains through share prices going up if the organization is expanding based on the hope that at some future day you will pay them dividends.