Business relationships are almost always purely transactional. When you stop being able to supply someone with what they want or at a good price then they will find someone else. The average CEO is not a friendly selfless person, which is why sociopaths find success in the business world.
Do you believe that the majority of people who hold power and influence are genuine philanthropists?
There are plenty of corrupt people who are never caught, or even caught and let go with little to no consequences due to their influence and money. As much as I want to live in a world where karma exists and assholes get what they deserve, that is unfortunately not the reality we live in.