Microsoft needs to make secure computing the cornerstone of the company, and the foundation of every product and service offering. In fact users are often uncertain if the file they are about to open is going to work as advertised, or is going to wreak havoc on their system. Even if users could accurately index the world according to these categories, it is very crude and not very useful. Microsoft's philosophy seems to be that there are some places we can assume to be safe, therefore we do not need to be concerned about security for all software. Microsoft haters need to know Microsoft is not going away, and need to get over it.
Industry giants die hard.
Bill Gates likes to tell the story that when he first saw kit microprocessors, he thought IBM was toast. I remember the first 80386 processors being promoted as a mainframe on a chip, and again predictions were made that IBM was in deep trouble. What people did not realize was that as expensive as the big iron was, the investment in mainframe applications, Cobol code and business processes was infinitely greater. The point here is that Microsoft is not going away. Enterprises with a heavy investment in Microsoft desktops are not going to upgrade to Linux stations with KDE graphical front ends en masse any time soon.