Proverbs 14:22 Do they not err that devise evil? but mercy and truth shall be to them that devise good.
23 In all labour there is profit: but the talk of the lips tendeth only to penury.
We have talked about the evil person in so many of these verses but it is important for us to realize as evil people work they get further and further away from God. There heart is becoming harder and harder. If they continue it will make it difficult for them to ever come to the Lord and find eternal life. Also in the second verse someone who is all talk and no work and it is people like this that devise evil. There evil leads to same as the other death and destruction and eternal life without God.
We do know though that those who use the wisdom and knowledge of God to do good and labor for the Lord as we should we accomplish the things the Lord has for to do. We will receive form the mercy God shows us the abilities to truthful in all that we do. Just like in any job you do if you work hard you will gain a profit from it.