You have just contradicted yourself. Cutting taxes will increase corporate profits, that much is true. But why should corporations then dilute those profits by expanding their business unless there is a clear and unmistakable increase in the demand for their services? Tax cuts alone aren't going to provide it. And "if you expand then they will come" is not a good business strategy.
Likewise, lower taxes makes it more profitable to produce and sell consumer goods. A higher supply of consumer goods in the market drives down prices.
Again you are contradicting yourself. If the object of a company is to maximize profits then why would they spend money to expand output which would result in lower prices and lower profits?
So, even if corporations intend to keep all the money for their shareholders the realities of competition and a dynamic economy will result in much or most of the benefits going to workers and consumers.
Your scenarios sound fine in theory but do not much resemble reality.
And the only way to increase demand for their products is to cut the throat of the supply chain from China and Mexico...And you can bet that the same congresscreeps who passed this tax thing will fight that measure with every thing they've got...
Let us not forget some of that tax reduction windfall will find its way back to our Washington politicians...