You're conflating allegations of harm vs harmed. Given your position is just assisting the person and not enforcing the law(which the person does not want the cop to do against them), you are magnitudes less likely to have allegations made against you.
Allegations aren't an objective historical fact. They can and are used to spite.
Apples and oranges.
> Officer Bob might have 31 excessive force complaints against him
A complaint is an allegation. It's not a confirmed incidence of bad behaviour.
Using Chauvin as example (17 complaints), From WAPO:
> A summary of the complaints against Chauvin posted by the department offers no information on why they were filed, and police declined to comment on the nature of the cases. Sixteen of the complaints were closed without discipline. The remaining complaint resulted in two letters of reprimand against Chauvin, according to the summary.
https://www.washingtonpost.com/nation/2020/05/29/officer-cha...
I'm a paramedic. If I harmed a patient once (let along 31 times), my card would get revoked and that would be that. A cop, meanwhile, is likely to face no consequences at all, and in the absolute "worst" case scenario, they would just get a job in the next town over.