Do those investors care about a company’s ethics, or are they looking to benefit from the mistakes of others by taking risk in return for a future return?

Aren’t there investors who look for, and are hungry for downturns in companies as a way to buy low and sell at a higher price? Do those investors care about a company’s ethics, or are they looking to benefit from the mistakes of others by taking risk in return for a future return? Are their motivations different from other stakeholders? Why, or why not?