Quoting Linus Sphinx (sphinxtar@gmail.com):
Call me old fashioned but if I was actually trying to make money off running linux I'd buy it a license.
{shrug}
I've often been senior in Operations, but never consulted, let alone allowed to decide, whether to spend money on an RHEL contract or deploy the leading, unbranded RHEL rebuild, instead. (That was CentOS at that time.)
So, I simply reported observed fact: Corporate places that deploy lots of Red Hat, such as firms that have dozens or hundreds of machines in data centres, strongly tend to deploy the leading, unbranded RHEL rebuild du jour, not RHEL. And more to the immediately point I was addressing, they _certainly_ do not deploy Fedora in production. That would be unwise, even past the folly limits of corporate America.
Aside: During a long employment stint in the Linux Mangement department of a very large EDA (electronic design automation) firm that _did_ deploy RHEL, the firm had a pressing need for help with a very serious RHEL software problem, escalated it to top Red Hat software talent, and got no satisfaction, i.e., the bug was not fixed. Just anecdata.