We undoubtedly live in pretty crappy version of cyberpunk. For already quite some time. Authoritarianism and techno-feudalism are on the rise. Cristo-fascism is blooming. Rights and freedoms are being taken from us every single day. Tech is transformed purely into means of data extraction, surveillance and control. However there does not seem to be any counter-culture forming, no music or art genres with strong messages rising up against all of this. Where is the punk of today?
I’d say the Clash were simultaneously highly mainstream and true to the spirit of punk. Dead Kennedys as well, albeit slightly less mainstream.
Honestly I’d say there’s a lot of punk bands that enjoyed something close to mainstream success without being sellouts.
Rage Against the Machine aren’t quite punk, but they’re heavily punk-influenced. It’s amazing that they were such a huge commercial success.
As to whether they’re sellouts, that’s really complicated. They did generate a ton of profits for the machine they raged against. OTOH, I never would have heard their music if they hadn’t been signed to a major record label.