First of all happiness is not a thing, it is a feeling. I can buy things that make me happy, which then will create happiness. So in that sense I think money can bring happiness. if somebody handed me some cash, I would be happy.
Regan did the right thing and got us through that recession. His Regananomics were beneficial to the economy. The government shouldn't be able to tax there way into prosperity.
Humans have the ability to show compassion and the ability to use morals and conscience- choosing right from wrong. Animals have instinct which they follow.