I offer this link as another differing opinion as to the "usefulness" of an MBA. I know the counter arguments,etc. and there are always outliers- but collectively, the evidence shows an MBA is respected and rewarded in the job marketplace. The article has more information that what I pasted below
https://www.usnews.com/education/best-graduate-schools/top-business-schools/applying/articles/2018-03-21/mbas-offer-more-advantages-than-undergrad-business-majors
1. A higher earning potential: An MBA usually boosts career prospects and leads to a higher salary, experts say.
"In terms of immediate-year compensation offer rates, one can expect as much as a 20 percent increase – $10,000 to $15,000 – in entry salary over an undergraduate degree in business, but this will vary by many factors," including area of business study and geographic location, said RT Good, dean of College of Business and Management at Lynn University in Florida, via email.
Some survey data, he says, report an even higher bump in pay for an MBA.
According to a 2018 report by the National Association of College and Employers, there's more than a
38 percent difference between the projected entry-level salary for someone with a bachelor's in business – $56,720 – and the starting salary for an MBA graduate – $78,332.
"This compensation rate increase compounds with each additional year, and studies indicate that an MBA degree can accelerate the rate of increases so that within five years, graduates might expect an 80 percent increase over their post-MBA entry compensation rate," Good said.