Earlier quoted context omitted.
This is a phenomenon that, like many social phenomena, seems to scale superlinearly, and you've described a gradient of economic advantage along which this will tend to accelerate. These properties suggest to me that an attitude like "it's fine as long as it's not taken too far" is at best pretty naive
Schelling points are a known outcome of many types of phenomena, especially competitive ones.
This statement is, while true, quite vacuous. What's your point?