History.
There are academically rigorous disciplines that exist that do not have BS equivalents, and I believe mine is one of them.
I agree with your assessment that many are as you state, but not all.
I don't see how anyone can claim to really understand what is happening today without knowing what went on beforehand.
I am currently reading “Up from Slavery” by Booker T. Washington. History is one of my absolute favorite subjects!
Truth is stranger than fiction - and reading history proves it!
Being a scientist though I think the proper ‘experiment’ would be between two groups, one with a B.S. degree and the other with a B.A. degree in the same subject - and a test upon that subject.
And with a sample size of n=1 for each group I would be leery of accepting such a test as anything more than anecdotal evidence.
;)
Not sure if such was the case when and where you went to school, but I don't want to say that there is no such animal as the B.S. degree in History - because there is.