There's also this to consider...
I think it's fair to say that the vast majority of us, probably over 99% of us, play this game to enjoy the challenge of improving against some fairly difficult odds, probably even more the case when it comes to the very top players.
Take away that challenge by using what amounts to bot software, and you've removed the joy from the game, and therefore, the motivation to play.
As in all aspects of life, a small minority will lie and cheat to get their needs met, but this is unavoidable and just comes naturally to some; but these blanket accusations being tossed about are useless, patently false, and betray a lack of understanding of human nature in general.