I think the intention isn't really to say that making money is a bad thing. But more that forgoing ideals/morals/principles/etc can lead to negative acts.

An extreme example is dumping industrial waste illegally to save on costs of safe disposal.

i'd rather not bring morality into this, because it's like an ass: everybody's got their own. my point is that 'making more money' is the easiest option if you're already at 'making money' stage, and it's not what Musk seems to be doing, unlike many.