This worldview that Bernie Sanders esque people hold, where every business person is a rich multi millionaire, ignores the reality of business... where the vast majority are small and medium sized businesses.
The critique of George Bush's temporary tax credit was that it was used as bonuses rather than stimulating the economy. But a long term tax reduction is something you can actually plan for with expenditures like R&D. I've seen many people comparing the two disingenuously like they are the same. They aren't, that's not how business finance works.
There have also been a number of examples in history where reducing the tax rate has actually increased tax revenue as companies are much more productive and more capital is available to invest in industry.
The more revenue companies generate the more taxable income there is both from the company revenue and the incomes of employees they hire.