Tbh, I think it would be far more fitting that Garou does the whole "A hero who protects the weak doesn't exist" speech than Platinum Sperm. Platinum Sperm being the on to say it feels a bit odd to me. Garou is the hero hunter after all and the on mocking and going against the heroes.
Also it makes me wonder. Which of the S Class heroes are actually heroes because they want to protect the weak?
- Bang probably? He seems to care about innocent lives and protecting them, as showcase in the EC fight. Although his motivation for becoming a hero was to promote his dojo iirc.
- While Genos is seemingly mainly out for revenge, he does fall into this category. He puts his life on the life numerous times for others.
- While Tatsumaki does care for civilians, as we know she was trying to get Psykorochi to not **** up the surrounding. We don't really know if that's her actual motivation?
- Blast seems to fall here as well?
- Atomic Samurai, Metal Bat, Pig God and Tanktop Master are all unknown (Although the last one probably falls into this category)
- Child Emperor only jions because of science I think? But he does care for civilians similar to Genos.
- I dunno about Zombieman, he seems to be mainly out for revenge like Genos.
- Definitely not Drive Knight
- King is only here by accident
I'd say Genos seems to be the most genuine out of them all. Not to say the others are not genuine though