Ed Sheeran Is on Track for the No. 1 Concert Tour of All Time. Here’s How

One possibility is that he wants to make sure that large numbers of not-as-wealthy fans think of him as their dude, and playing to audiences of rich people could tarnish his brand image. Or, he just thinks not rich people should be able to see his shows. Or, he doesn't like playing for an audience that feels entitled because they payed a lot, and he gets a better vibe in the audience if it's full of people who aren't wealthy-entitled-types. Or something else, but that's several possibilities.

Edit: I never heard of this guy before now, so I don't know if any of these guesses are the reality.

because luck is random

having money to pay is not

You may have a strategic preference over your customer base which is something other than "I want the customers who can pay me the most". The guy's either got a strategy or an axe to grind and it's his prerogative either way.

Luck is often a better determinant than willingness to pay because it biases towards more “superfans” who will have the time of their lives at your show. Jeff Bezos might be willing to pay $100K for a ticket even if he had only the slightest interest in Ed Sheeran, while a 14-year-old who knows every word to every song might be willing to spend every penny she has, which is $12.57. By requiring something like endless clicking on a website, or standing in like for 5 hours, to get a ticket, you make people pay in time rather than money, which although not fully equally distributed is still more equally distributed than money.