I'm in what I think is quite a backward and archaic shop. We're still using CVS (!), Perl was only upgraded from 5.6 to 5.8 this week, and we came on board PHP 5 from 4 only this year. If you get any success, let me know :) but based on experience, I can tell you that sometimes a big factor that impedes adoption of new technologies is not so much that the benefits and superiority of the technology is not known or acknowledged, but rather that there are more pressing priorities that management wants to get to.
If the team, department or company is getting by with currently used technologies, or even doing relatively well with them, then changing to or even test driving new stuff may not have sufficient justification yet.
Something I'm doing which you might consider is keeping a log of actual, tangible problems encountered with the technologies you consider inferior. For example, in my case, I am keeping a log of the times when CVS gives any member of the team problems or frustration, especially when my preferred solution (git) would have saved the team time, or made possible a quick solution that CVS doesn't allow. At some point, the amassed evidence might weigh heavily enough to support a decision to change to the new technology.