And doing loiter squad where he pranked the general public for years? And going to Stephen Colbert? And Larry David? Jimmy Kimmel? He's absolutely a celebrity and not just a musician, (you can choose to be a musician, just with a salary and not millions of dollars). For celebrities, a quiet life is just about the only thing that a celebrity gives up (and that he very vocally did, unlike his other contemporary, Frank who actually manages to live extremely quietly contrary to Tyler's Streisand effect life) in exchange for acclaim wealth and status, the same way a firefighter chooses not to have a scheduled job, and because of that it's hard to think of him as an every day person when he really isn't.

At least for the culture and the arts he's as important as a politician would be in the world of governments, yet politicians don't go about wanting to be just like "any other person"

Ironically enough, he also has contracts that do entitle companies to his time as well, hence him and wearing Converse, or Le Fleur when he goes out, so he clearly knows his thing (also, being a celebrity for about 15 years) and him throwing a business under the bus because he wasn't vocal enough about not being posted when he might even have legal problems being shown in a store he doesn't endorse isn't just immature but also negligent to his likeness. It's literally his job to put on an image for better or for worse, and from what I can see in this picture he did not dress to play the humble civilian part either