The benefit is free speech, and thenfree exchange of ideas.
Let's use COVID as an example, there were literally thousands if not more medically qualified people who were censored for making very sensible and very accurate claims, but they weren't the codified opinions according to the government. So social media platforms went on an aggressive censorship campaign. Take the Hunter laptop story, that may well have been a game changer, Zuckerberg suppressed it then later came out and said oopsie my bad, I shouldn't have, the FBI told me too.
The same way there are people in Hyde park, ranting about how Islam is going to conquer the UK for hours on end, and is played to millions of people on YouTube...
You have to accept people sayingbthings you don't like is a net benefit to being allowed to speak publicly. Free speech isn't eroded by the sensible speech, it's eroded by taking away the unpopular and working it's way inward.
Look at the BLM protests, the pallets of bricks, the free zones allowed, it was designed to make the protests violent, so the government could amend powers to crack down on protesting.