A good product manager, designer, UXer, developer, project manager knows how a business makes its money.
This quote from MasterCard CEO Ajay Banga:
When you don’t understand how money gets made, it gets made in ways you don’t like.
That quote really sums it up. If you business is making money understand how and use your influence (everyone has influence) to make sure it’s being made in an ethical way.
Do you work for a loan company that makes it’s money on unfair APR, or a travel company that bundles products a user doesn’t need, traps users into unfair contracts, makes it hard for a user to cancel their subscription or a myriad of other questionable practices?
Understand how the money is made, pressure the company to change anything that is unfair. Move your product to place that makes money in way you are comfortable with.
Don’t bury your head in the sand and optimise your product based on an unfair or unethical business model.