I assume the point is to then use the money you save in the most moral way possible. If you're a utilitarian, this would then mean spending it in the way that creates the highest utility. An ethical hedonist might spend it on "hookers and blow". If you have a more relational view of ethics, the most moral way to use it is to tip in the first place, though.

I'm not going to talk about some of the more extreme examples of what this would imply until other people do.

The extreme would be to create a huge business empire based on poor-quality products, like, I don't know, a buggy operating system or something. Break the law at every turn as long as you can get away with it, commit numerous antitrust violations, take open standards and slightly modify them so nothing else is compatible with your company's products. Then take all your profits and set up a charitable foundation, and donate billions to, I don't know, improve global health or something.