There's also the fact that wealthy people can settle a sexual misconduct case even if they did commit it. You shouldn't be able to pay someone $900k to make an accusation go away and then face no criminal repercussions. Even if the victim is ok with that, the perpetrator is still free to harm other victims.
That doesn't seem to me to be true. DFJ carried out some kind of investigation, as the article mentions. I don't agree with your assertion that any evidence they found would have been leaked by now (or would necessarily ever be leaked). And I can't believe that DFJ's investigation into such an important person in their organization would have been cursory, nor that they would fire him without substantial cause.
We don't know what the investigation found, and we may never know. That doesn't mean there wasn't anything.
I'm sorry, but the "What about the men?" take is quite childish, and treats women like they have cooties or something.
His career ended when she made the accusation. The standard of proof in these cases seems to be “I said he did it,” and that is wrong when the penalty seems to be instant banishment from your career and society in general.