If you’re so confident it’s a solid way to get ahead, please go ahead and try it yourself.
"So"? The fact that someone is alleged of rape and doesn't lose their invited speech is hardly evidence of injustice. Allegations are not convictions nor proof of guilt.
It seems you are against the presumption of innocence. This presumption is itself a cornerstone of justice, not the opposite.
I think the opposite is true. Accusing someone of rape is often very bad for the accused person, even if the claim is never substantiated. False rape accusations are defamatory.
This is not a legal forum. (In either the literal "this is an internet forum" sense, or the broader "place for discussion" sense.)
If you want to defend your techbro idols of charges far, far too many of their brethren are unquestionably guilty of, you're going to need a stronger argument than "you're not allowed to say you think he's guilty unless a court agrees with you!!"