It appears that you're both being downvoted for taking the exceptional case (Microsoft in the 1980s) and applying it to all businesses today.
Even taking into account the different business culture of the 1980s, Microsoft's early ruthlessness is well known precisely because it was not the norm then, and certainly not the norm now.
Even taking into account the different business culture of the 1980s, Microsoft's early ruthlessness is well known precisely because it was not the norm then, and certainly not the norm now.