The point is that the existence of the highest rates seemed to have an effect on prices contrary to your theory of the effects of income taxes. I used it to show that your theory is wrong and not consistent with the data.
Why would I lie about not being in the classroom it is nothing to be ashamed of since I respect education and educated people? But I have been a financial analyst for over 25 years not that it is any of your business. I do have degrees in Economics but have not taught.
To attempt to mask ignorance of real world situations.