Lots of people commit crimes and don't get arrested. That's not the measure. But if you're going to be the president of the United States, we're reasonably going to put you under a microscope. And Donald Trump's tax behavior is absolutely important to understanding, is he qualified, is he morally fit, is he capable, is he trustworthy to have everything from the powers of federal law enforcement to the nuclear codes?
As I see it, the major requirements for a strong and able rendering are an understanding of a work's structure, voicing, and trajectory; an ability to execute the details on the page from largest to smallest; technical command, and hopefully a connection with the overall expressive impulse (though the latter is not at all necessary to give a good performance).
If a psychological Maxwell devises a general theory of mind, he may make it possible for a psychological Einstein to follow with a theory that the mental and the physical are really the same. But this could happen only at the end of a process which began with the recognition that the mental is something completely different from the physical world as we have come to know it through a certain highly successful form of detached objective understanding. Only if the uniqueness of the mental is recognized will concepts and theories be devised especially for the purpose of understanding it.