The good person increases the value of every other person whom he influences in any way. – Anonymous

Matthew 13:33 He told them still another parable: "The kingdom of heaven is like yeast that a woman took and mixed into a large amount of flour until it worked all through the dough." 

Like yeast when worked through dough, so does influence work through our family. The way we influence each other has to be positive and productive. Paul warns us in 1 Corinthians 15:33 about the effect of bad character and how it corrupts us. Jesus however calls us and our families to be the light on a hill that is not hidden, but is one of good deeds so that all can see.