Well any government works a little bit like an Enterprise... it offers services for which you give money. It has several employees all working for the good of the government. It was just an example that came to my mind, it wasn't supposed to be THE ARGUMENT of the day.
The only reason I challenged the North Korea argument is because I think some of the previous posters had some good points about the involvement that MS has in the enterprise. MS is huge in both the consumer and the enterprise markets, but many of their competitors only compete in one or the other. Apple and Google for example really don't have a presence in the enterprise. This is important for two reasons...
1) MS may at times move more slowly because many of their products have features related to enterprise customers. Windows and office are both really good examples of this. Unlike OSX which is really a consumer only OS, Windows is used on most business desktops as well as by most consumers with a home PC. Windows Server is also a repackaged version of desktop Windows and must be developed in coordination. MS Office is used by home users, but it is also integrated very tightly with Exchange server, SharePoint, SQL Server, and lots of other business/enterprise products. All of this requires additional coordination, development, and testing, but the benefits (both to Microsoft's profits and to their customers) are often overlooked by people doing a direct comparison to competitors that only operate in the consumer market.
2) MS also doesn't get credit for a lot of it's accomplishments because about half of their innovation and focus is only noticed by those that are involved in the enterprise market in some way. The Windows NT kernel was developed as the basis of a server OS and later became the kernel used by desktop Windows, Windows Phone, and soon XBOX One. Many other MS enterprise products are not suitable for direct use by the consumer world, but those products are still innovative and many of those products help to indirectly drive things that are used in the consumer world. Microsoft's development tools (Visual Studio, .Net) come to mind.
When you consider those two things I think MS is actually more quickly innovating that any of it's competitors. As a matter of fact, I can't think of any other time when MS has been moving so quickly. In a span of about 1 year (starting last fall and ending this fall), MS will have released major updates to every one of their products that I can think of. Both consumer and enterprise. This includes products that traditionally have only been updated every 2 to 5 years if not longer. Off the top of my head all of these products are either new or have seen major updates in the past year...
SQL Server 2012 (major update)
Windows Server 2012 (major update)
Hyper-V (major update)
System Center 2012 (no personal experience)
Windows 8 (major update)
IE10 (including new touch optimized version)
Windows Phone 8 (major update)
Office 2013 (including new touch optimized version)
Hotmail -> Outlook.com
Windows Azure
Windows RT
Surface
Surface Pro
And in the next few months...
Xbox One
Windows 8.1
IE11
Wow. I really didn't even realize myself just how much MS has done recently until I started typing that list. Compare this (incomplete) list to Apple's and Google's list of recent accomplishments. They look like they are standing still compared to MS. MS may not be where they want to be in every market (mobile mainly), but as a whole it's hard to argue they are innovating too slowly. If anything I think they might be innovating too quickly for consumers and especially the enterprise to keep up.