Quite the revisionist history view of the world. Businesses never "fled" the Mac platform. Businesses "flocked" to the IBM PC platform because the alternative was a couple of long hairs making Apple][ computers in their garage.
The Mac didn't appear until 1984 (remember the fantastic '1984 Big Brother' commercials? Brilliant!) and by that time the IBM PC and other PC clones had dominated the business PC world.
The only inroads Macs made, and this is still very true today, was in desktop publishing, and video editing. And today, like 1984, Macs dominate those fields not because they're superior to PC Windoz machines, it's just tradition.
Well, that's just, like, your opinion, man.