You can't help but feel good about yourself when you know you've made the right choice. Good decisions win the trust of others. The best way to win trust is to prove yourself trustworthy. Good decisions make for a good reputation. While not everyone will agree with your decisions, you'll win some respect when you stick to your values and beliefs.
Good decisions show others the right way to go.
You can talk about good and bad decisions. You can pass on good advice. But if you really want to influence someone, set a good example by making good decisions. Good decisions have a real future. One cool thing about good decisions is that they build on one another.