Saying it's good is too vague. Why is it good? You could argue that it promotes economic efficiency. You could also argue that it's "bad" because it requires the use of coercion and deception...and the treatment of individuals as mere means to an end.
Look into shareholder and stakeholder theory of business. You should be able to formulate a decent argument using the ideas from either or both, though I will warn you, the stakeholder theory sounds quite nice but is a backdoor to Socialism and Communism. If you need to argue ethical theories, look into Kantian ethics (the prevailing and accepted theory in academia), utilitarianism, and possibly egoism, but make sure to understand the difference between a descriptive (that's the way things work) claim and a normative (that's the way things should work) claim.
See? All of this is sounding more like an economics paper or debate viewpoint. Outside of the scope of a mere English class.