> It gives people who don't discriminate a chance to step in and gain market share. The next step is that the discriminating companies are out-competed and go

> It gives people who don't discriminate a chance to step in and gain market share. The next step is that the discriminating companies are out-competed and go out of business, leaving only non-discriminating companies. Conclusion: that's why there are no discriminating companies left! This is a nice thought, but it barely works in theory and I've never seen it work in practice. That the consequent isn't observed regularly should tell you something about the assumptions we started with.