That sounds more like jealousy to me.
Ultimately though, I'm not sure many readers will care.
Again, it comes down to branding.
What are you trying to do as an author? Not as a writer, but professionally? Where do you see yourself in the market, and also, do you bring something unique to the table? An exclusive perspective, your own story to tell? Readers do care about that. Especially in this day and age of Own Voices. Holy crap, if you feel that you alone have captured a slant on your story due to who you are and where you come from, shout it through a bullhorn.
For those of you who know me, this next bit will probably sound contradictory, but I likely diverge from the masses here when I say that it's not necessary to have a bio that would make a terrific memoir on its own.
I'll give you a minute to laugh that off.
Seriously, though. While I personally recommend doing epic shit whenever possible if you're going to write epic fantasy, I don't think it's necessary. It does sell books, but not on its own.
This is because nothing--not one thing--will ever make up for putting in the work. There are plenty of bazillion-selling, world-changing authors out there who spent their lives quietly learning the craft. Craft is enough.