This is a sincerely dishonest take to try and avoid responsibility for participating in something deeply unethical and scammy. If this were about evidence in a criminal trial, I would start opining about a poisoned tree.
The sad thing is that it often works.
Just look at how people view Andrew Carnegie now. After his reputation was sullied by his company’s behavior in the Homestead Strike, his philanthropy was done, in-part, to try and restore his reputation.