Interesting question! My take is that it is neither common or uncommon. Everyone is totally unique in their makeup, especially when it comes to perspective and outlook on a matter and/or life in general.
Now for me, after all the decades that I have been on this planet, I, most of the time, but not 100% of the time, let things roll off me and I shrug my shoulders on things that I cannot change and move on.
I have known folks that were complete opposites of me and that is ok too, as it would be very boring if everyone was the same.
I have not experienced someone or anyone who either ctb or contemplated ctb because of this and at least for me, it would make me very sad to lose a very nice SS member to this.
After 65 years here, reference point only, I have had experiences myself and seen so many times where whatever is impossible to budge and one moves on and forgets about it, as time sometimes can either heal or at least help one forget about a certain nuance.
I send you lots of hugs, well wishes and bright blue sunny skies and the knowledge that I care about you a lot.
Walter