The right move is the wrong move when your team doesn't back you up.
I have seen uncountable amounts of lonesome deaths, lost trades, lost objectives and simply wasted time because somehow people have the tendency to expect that when they assume a move to be the right one, their teammates will magically assume the same thing.
It already starts in the very first minute of a match when someone decides it's opportune to invade for whatever reason, doesn't get followed by the team and instead of backing away, hides alone in the enemy jungle, pings like a madman and gets killed.
The hotspots for these situations are probably dragon and baron. How many times did somebody die because he/she was dead sure an objective needed to be claimed or contested, ignored the teammates who preferred to spam emotes at each other and went in alone?
And oh boy, don't get me started on bot lane. As a support main, going to lane with a random adc feels like opening a kinder surprise egg. You have no way of knowing whether you get an hyper aggressive toy, a farm-only toy, a poking toy, a toy which does nothing until you do, a toy which...etc. You can be sure though that you are expected to not only play fitting to the toy which isn't known to you yet, but also perfectly anticipate when your toy decides to turn 180 degrees and play entirely differently.
The right move is the wrong move when there is no team play!