Sure, just lemme find the magical switch that God gave us..... Oh crap, we got Sin instead.
Honestly, we can't simply be the best person in the world at the drop of a hat, it takes time, effort, motivation, and a damn strong will to stay that way regardless of the obstacles.
And many will not change just because other people say so.
I'm happy as I am. Sure, I'm not a fantastic guy, but I'm not an evil prick either. I recognize my flaws better than I recognize my pros, I help those when I am able (I'm not Jesus), and yeah I'll encourage other to be the best that they can be, but I don't expect them to turn over that leaf in the next few minutes.
And ultimately, being good just because people expect you to has far less meaning than choosing to be good on your own without anyone telling you to be good.
My top signature also helps with everything, and it is the truth when you think about it.