Reread my comment. I’m not saying it’s ok because it’s the industry standard, I’m saying it’s tolerable because it’s the industry standard and yet despite their strong market position, they still consciously provide a good value.

And let’s not pretend that even if everyone switched to a 10% margin (assuming that would even be profitable), people wouldn’t then complain about 10% being too high. It’s like taxes - no matter what it’s set as, a significant amount of people will always say “that’s too high! I don’t want to pay that!”