Some would argue that developing a purposeful organisation (whose purpose is not just to make money) actually also produces better returns, but I think the jury's still out on that. There are some striking examples but they might be cases of survivor bias.
> a business trying to make as much money for the investors
> as possible? If the latter is true, why
> wouldn't someone work for you with "money as the primary motivator" ?
It is possible to offer a fair return on investment without having to take every possible step (ethical or otherwise) to maximize profitability.