Song publisher Bob Miller sang this song of his around 1928. It casts a stark divide between socioeconomic classes. The rich are better off, have an easier life and it will continue to be this way. Another way of stating this view is that, structurally, the world is fixed or rigged, to benefit some, even at the expense of others. This explanation can go so far as to mean that there is little or nothing the oppressed class can do to improve their lot.
Not much can be found on Bob Miller, but he is touching on Marxism. He was writing before the Great Depression, and the emergence of public social programs and services as part of the welfare state. These government activities aimed to help those less fortunate.