No you shouldn't and yes you should.
Your question is loaded, don't be so foolish.
In a competitive game you want everyone on an equal playing field.
So when you have someone on your team lagging but still queueing up for ranked its like wtf lol.
Even just playing normals i get annoyed if my ping is even 10 over what it should be so idk how anyone can be fine with lagging unless you don't really know how to micro or anything that would make having low ping important in which case I can't even think about an answer for you or anyone else because I'm not talking about variables that are meaningless.
Since I transfered to LAN for the 52 ping I don't want to have 60-300 ping every game like I got in NA for 5 years straight basically.
In any competitive game having 15-50 ping is basically a necessity no exceptions.
Even 1 frame can be the difference between you winning and losing a match completely when you get high enough on the ladder in most games.
I've played countless games that rely on fast pace reactions.
street fighter, mortal kombat, halo 1/2, cod 4, UT 2004, dota all stars, dota chaos heroes, Wc3, broodwar, blade and soul, black desert online and last but not least league of legends.
Infact theres probably more I've played and I just can't even think about them because the fact is that high or even mid range ping is unplayable in an enviroment where everything is constantly moving and people who can't keep up are punished badly.