Clearly, you don’t have the authority to tell someone whether or not they ought to go into business. While one needs to make decisions without perfect data, one has to be smart enough to recognize the difference between good data and bad data. Thinking the lottery is a good investment because two of my neighbors hit the jackpot is making decisions based on bad data, and would be quite imprudent. To generalize from a bad data source is no different from prejudice. Now, if you want to be prejudiced against economists with doctorates that is your prerogative, but if you want to make generalizations about them it really ought to be on the basis of good information.
True, some people get lucky. Even though playing the lottery is a bad decision from an expected value point of view, some people do win the jackpot.
If you ever go to college, you will learn some critical thinking skills, and one of those critical thinking skills is to know that generalizing from anecdotal evidence is a very bad idea. Also, in most colleges of business the economists are a minority of the faculty. The accounting, management and marketing professors are assuredly not economists. Of course, they accuse us economists of being arrogant.
Actually we don’t assume that credentials equal competence. True, in order to get a job you need a credential, a doctorate from a decent school, but that in and of itself is not enough to land a job at a university. At my university, 95% of resumes that I receive never get a phone call expressing interest in their application. Competence is very important.
I have also worked for plenty of those touchy feel management type deans who couldn’t add and subtract. The soft skills are important, but if there is nothing behind them, profits won’t be good.
Clearly there are people who are too heavy on one side or another, but if you can’t understand data, like some of my upper administrators that I deal with, you are likely to make decisions that cost you money in the long run.