This might be a cynical take, but I doubt Ticketmaster (and most of these other examples) are motivated by doing the most good. Their underlying principle is extracting the most value for shareholders at any cost.
Some people argue even that behavior ends up producing the most good, but I cannot accept that level of mental gymnastics.
There is a limited amount of engineering resources. Don’t you agree they should try to use them for the benefit of the most people? That’s not to say they should exclude groups. But a small minority path probably gets less work than a main path. Would you agree these prudent or not?