I think the idea is to wake up normal people. If protesters only annoy the rich then nothing changes because it’s easy for the rich to ignore a couple of protesters.
If you annoy regular people then hopefully more people wake up. It’s a lot harder to ignore regular people especially if a lot wake up.
We need everyone in this world to be pissed off, not just a few activists. The sooner everyone is pissed the less leverage rich people have to ignore it all.