Uuhm... Not to be overly flippant but me, my wife and my two daughters as well as my bootstrapped startup are supported by my work for a multinational financial organization. The technologies you mention essentially run this organization from an information delivery aspect.
I understand and I'm sorry if I came across as insensitive - I was half-joking. My own experience with these technologies is not favorable. Every year or so the company I work for experiences a day long mail outage. My wife has lost about a month of work because Sharepoint died and no backup could bring it back to life. And yes, both installs are maintained by people with plenty MC* certifications and, in both cases, the reasons for using the software were not tech-driven.
It does not follow that since no workable backup strategy was in place that Sharepoint is rubbish.
Look: I'm not singing the praises of these softwares, it's big clunky enterprise stuff and it is boooring... None the less: it's running some pretty important processes that combined run a large portion of the worlds I.T.
The fact that I have at least part of the knowledge makes me more valuable for an employer.