Wicked principles are a bad foundation. If a building has a poor foundation it causes problems inside the building. Maybe the building will get cracks in the wall, maybe in the floor. When any real pressure is put on the building it causes further damage. Life must be built on solid principles, Principles that honor God. Even unbelievers know to tell the truth, have an honest product for their business and not to steal. They know that one day, it will catch up with them if they are bad. So as Christians, we should know this even more so.