Capitalism rewards the greedy. The jarring inequality in our societies is a direct result of that greed. Analysts of a recent IMF research paper has noticed that the wealthy doesn't spend as much of their wealth but rather hoard it. In contrast, the poor(s) spend almost 100% of their income.
According to Mother Jones, the investigative magazine named after the famous activist, "Larry Summers directs our attention to a new IMF paper that suggests MPC actually does have a big impact. The authors look at two effects. First, as middle-income families fall into lower income groups, they spend less. Second, as a larger share of income goes to the rich, average MPC goes down. Both of these effects reduce total consumption, which in turn acts as a drag on the economy."
In other words, tax cuts to the rich don't help the economy. Letting corporations and the 1% squirrel away billions in offshore accounts robs humanity of its future.