Is get a kill better then win the game while someone didn't get a kill?

While I play rank game, Top, and bot has great position to hold their line and jungler has good gank to help. but mid lain start to rage quit for not get a kill and blame jungler for not helping (even he already try) even his bad game play skill.

here the lain match (top, jungler, mid, bot, support): me: , , , , enemy: , , ,

at 1 death 0 kill : looks fine. 2 death 0 kill : he start to blame jungler. 3 death 0 kill : he frustrate for no get a kill and say like "If i can't get any kill, then i quite." 4 death o kill : he stay at fountain for like 5 ~ 6 min and we please him to come back for help.

after that, he back and won the game.

I just don't understand, even we have great chance to win the game when team up together. not like all the lain are losing. I only care if I could get assist my team or save other.

I just hope even can't get more kill then other (while play mid or top), they won't need to get rage quit or something. try to work with their team and win the game.

P.S. also a bad player that go in with Q to the dragon in 1V5 while no one tough it.