Do people really have nothing better to do than pay attention to what title someone is wearing in roulettes and then scrutinizing and judging them based on their performance, going full disappointed parent mode when they didn't meet whatever arbitrary standard they set?
"You wear a Legend title, I'll keep a very close eye on you to see if you're worthy. Oh no, you made a mistake. I expected better of you but you have disappointed me. I, the stranger on the internet, hereby judge you unworthy, you made a fool of yourself. Run away in shame, fool!"

You don't know if they bought the title or not and even if they did, it's not like they're stealing your cookies with it. Not your job to go against it by silently judging them.
Just enjoy the game and ignore other people's titles or what they could mean or not mean.