I've always had a natural predisposition to get involved, (whether a smart move or not is up for debate), but it has been drummed into us from early days to avoid involvement if possible.
For example, I started my LE career in the early 80's. NYPD would visit our agency to discuss "peace officer" status and would emphasize that not only with us feds, but even with their own "off duty" officers, they preferred the "good witness" and "making a phone call", to direct involvement unless it was a matter of life and death (or grievous bodily harm).
Things have clearly worsened over the intervening years from that time to the point where LEOs and citizens who take steps to intercede on behalf of others are the target of prosecutions, civil liability, and now the cancel culture and doxxing.
It's very hard to not be paralyzed like a deer in the headlights with the "should I / shouldn't I" dilemma over getting involved. And clearly it's a matter that each of us has to give much thought to in advance. Not only for our own physical and mental health, but the emotional and financial health of our families.
Now that I'm older and perhaps slightly wiser, I try to avoid circumstances where I will need to confront those choices. But I still struggle with my predisposition to want to come to the aid of others, even when I know it might be best to avoid involvement. Thankfully, I haven't had to deal with such in some time now.
Doling out some deserved frontier justice to a dirtbag comes with a very high price tag. One has to consider the cost.
(Believe, me @
JRB , I am with you all the way in how you feel.)