[Longhanks]

In democracies, usually it's up to the population to decide what favors the population best.

Also, in democracies with a somewhat free market, you can simply choose not to buy phones that do not ship the port you prefer.

[stubish]

In democracies, the population decides what favors them, and the government enacts their will via regulation. Without regulation, some companies will abuse their customers when profitable to do so, often dominating over the companies that do not.