I do feel kind of simillarly betrayed. Watch Dogs were my forst point of reference into what hacker subcultures look like, and it has shaped a large part of my life - next month i's going to be 5 years I've worked as a Red Teamer in a cybersec company. I'm also mostly a poser, and the aesthetics simply makes it way more fun - making art that's tied into what you do is great, assuming you dont take it too seriously, of course. Not that I do it, but the way Watch Dogs portraied it, it was fun.
Is it neccessary? Of course not. Is it a shame there aren't many hackerspaces with cool street art, and hacktivists making over the top manifests ajd cool streetart around our town? A little bit.