If you can both downgrade the quality of your product and boost profits, you may be a monopoly. If Amazon can charge for worse ads, use that data and learnings

If you can both downgrade the quality of your product and boost profits, you may be a monopoly. If Amazon can charge for worse ads, use that data and learnings to undercut its sellers by better positioning its own/preferred products, and therefore make more money you can almost certainly argue it is a monopoly, which is what the FTC is trying to do.