So you are OK with people's lives being fucked up just because they've been accused of something? You do realize that anyone can accuse anyone of anything anytime, right? There's a reason we go through investigations and trials.
To your question: obviously not. That statement discredits you as a genuine enquirer. Strawmen and incredulity don't really help us make progress here.
Or, you have statistics to show that's true?
> You don't get locked up on remand just because someone made an accusation against you.
Yes, you can. Once accused, you then go to trial to see if the accusation is correct.
What statistics do you want to see? How many people make false accusations? How many people are arrested on false accusations? How many people use "guilty by association" logic because they can't be arsed to figure out the real story? How many lives are ruined because you would rather we just bypass the judicial system?