I mean yeah. Like empirically. No disrespect but all opinions are not created the same, nor should they be treated the same.
I know jack shit about sculpting. I couldn't design or execute a half-decent sculpture to save my life. So Stanislaw Szukalski and Ai Weiwei's opinions on sculpting should be respected more than mine because they have a broader perspective of functional knowledge to draw from.
Likewise, Ben Carson is a brilliant pioneering neurosurgeon. I'm sure he has opinions on brain surgery that should rightly be considered more legitimate than mine. But his opinions on, say, ancient Egyptian history should be treated with much more skepticism because the man is an expert at head meat poking and slicing, not in Egyptian grain storage in a desert 3500 years ago.
The same principle applies to everything from wine to foreign policy to epidemiology to aviation to microbiology to 14th century Slavic art to fuckin' frisbee golf. The people that spend their time doing and studying their thing, especially repeatedly over the course of a long time, are the experts. Their opinions are worth more.
