You don't need to be once you haven't been found guilty.
This really is a pathetic argument!
Actually in many cases the plaintiff wishes for just that. There is a very famous set of civil cases brought in the USA regarding a chap called Jeffrey Epstein. The 2006 criminal case ended with a non-prosecution agreement. Similarly Giuffre was unable to bring a criminal charge against Prince Andrew, but brought a civil suit instead which was settled.
So by your logic Andrew is entirely innocent of having raped Virginia Giuffre when she was 17 in Epstein's mansion for cash solely because there has been insufficient evidence to bring a criminal case, yet he paid Giuffre 12 million pounds to go away, which we all know is the action of an entirely innocent wealthy man.
Again, I would exhort you to read the Secret Barrister where you will discover that guilt and innocence is not as simple as you would like it to be. How about Dennis who walked into a police station to hand over kitchen knives whilst having a mental health crisis where he thought he would kill his flatmate? Yes, he was prosecuted for possessing a bladed weapon and making threats to kill. Guilty as hell!
Or how about the story of Rob McCulloch a man with multiple convictions for violence against women who groomed a 14 year old girl, gave her heroin then regularly beat and abused her until she was 22 and beaten so badly she was rescued by a taxi driver and taken to hospital where she told the Police about her life. Unfortunately the CPS failed to provide the police notebook or the medical records in evidence. The Judge therefore dismissed the charges. good old Rob! Completely innocent and free to brutally beat more young women!
Or how about Laura who stole £20,000 from an elderly man but got away with it because the Police forgot at *any* stage to ask whether he had given her permission to take the money.
Practised criminals know that, even if the evidence against them appears strong, there is always the chance that the prosecution case will spin off the rails en route to trial and smash open an escape tunnel. One of the reasons that many defendants plead guilty only on the day of trial is that they will bide their time, hopeful that a prosecution error or a key witness losing their resolve – a crushingly prevalent problem in allegations of domestic violence – will free them at the last.
Barrister, The Secret. The Secret Barrister: Stories of the Law and How It's Broken (p. 128). Pan Macmillan. Kindle Edition.