I don’t get this entire thread.
I understand someone has an issue that people can be engaged in business without being experts in choshen mishpat. I suspect the legitimacy of the question though, when after several tries, he/she won’t answer why this is any more an issue with those who are engaged in business than those engaged in anything else in life. Seems to me that the questioner is bashing those who engage in business. Perhaps the original poster should offer an apology.