Long-term capital gains and qualified dividends are taxed at lower rates than interest earned on a bank account (if any these days) or wages from a job.
Corporate tax rates should be lower, tax rates on profits earned outside the U.S. should promote repatriation of much of that money, capital gains taxes should remain low or lowered even more, subsidies and loopholes that no longer make sense or are unfair need to be eliminated, and the list goes on.
And these business rely heavily on interest rates as the interest income earned on the outstanding loan portfolio forms a bulk of each of their revenues.