The Tongue is a Fire

James 3:6-12

"And the tongue is a fire, a world of unrighteousness. The tongue is set among our members, staining the whole body, setting on fire the entire course of life, and set on fire by hell.
For every kind of beast and bird, of reptile and sea creature, can be tamed and has been tamed by mankind, but no human being can tame the tongue. It is a restless evil, full of deadly poison.
With it we bless our Lord and Father, and with it we curse people who are made in the likeness of God.
From the same mouth come blessing and cursing. My brothers, these things ought not to be so.
Does a spring pour forth from the same opening both fresh and salt water?
Can a fig tree, my brothers, bear olives, or a grapevine produce figs? Neither can a salt pond yield fresh water."

I find it interesting how people consider themselves to be generally Good People, and when you take them through the 10 commandments a great deal of them justify their acts and still end up thinking they are good people. But the moment they see you act a certain way, for example you hate lying and by the Holy Spirit try to tell the truth at all moments and generally do not purposely lie. One of these "Good People" find out that you do that, they get altered immediately become hostile and then comes the name calling. Now you are a pharisee, a legalist.
My question or questions is/are:
1. If you are a good person, why does it bother you when someone (a Christian for this example's sake) tries to do the right thing in a given situation?
2. If you truly are a good person, why then is it necessary for you to lie, steal, cheat, lust, etc?

I'm going to have to conduct a survey on this, it would be interesting to see how people respond. I think the term is Double Standard. In any case, its interesting.