This line of discussion seems unproductive. Various business professionals are pretty uncontroversially included in the term "yuppie."
This is true regardless of whether you think they hold the same prestige, cachet, etc. of lawyers and doctors and regardless of whether there should be licensing and regulation of, say, investment banking.
This is true regardless of whether you think they hold the same prestige, cachet, etc. of lawyers and doctors and regardless of whether there should be licensing and regulation of, say, investment banking.