I'm not saying that if you're godlike that you should 1v5 the enemy team (though if you could, you should). I agree that it's harder to 1v5 carry in LoL compared to other Mobas. What you said kinda highlights the problem I wanted to point out though - godlike players tend to create for themselves an individual mentality - an "I'm the best, my team sucks" mentality, and they try to rely only on themselves and bemoan a loss and blame their team.
Yes, it was your teams fault that you lost, but it's also your fault you thought yourself above them. However, everybody wants to win, even the "bads" on your team - if you're carrying, chances are they will listen to you. This is why as a clear score leader, you have to LEAD. You dont just run around as an individual and ignore your team. If your team is actually stronger, make plays, if your team isn't, catch the enemy team out of position and take objectives. People with carry mentality need to play support sometime.
People are always here complaining how they did well and their team got caught out of position bla bla, that's sad and all, but there was always something they could've done to help. If you think your team is stronger, why are you guys not pushing? If you were pushing, your team members wouldnt get randomly caught in a bush somewhere. The fact that your team members are getting caught randomly makes it sound like you were already losing or you guys weren't making the correct strategic choices - like you're off farming somewhere because you think your team is crap.