Proverbs 19:1 Better is the poor who walks in his integrity than one who is perverse in his lips, and is a fool.
Being honest in your own heart and with your own heart is what we should all strive for.
Christ showed us that integrity means a lot and true integrity has to start within yourself in front of God.
If we start out by telling lies then we will find it much harder to convince people of the truth when we try to tell them the truth.
We cannot put great trust in the riches of this world because so much of it seems to be built on lies nowadays.