No. Business responds to costs. Swapping all their hardware to convert to the Mac OS for most enterprises would be disastrous. Then there's the learning curve for employees to familiarize themselves with the different names and terms used by Mac. Porting or virtualizing proprietary apps to Mac may be cost-prohibited.

If a business decides to do this I want to know about it. I'll be the guy by their dumpsters loading up the pick-up truck with computers and rackservers!