It would make software developers' lives a lot easier if so many people weren't scared out of their wits by computers. I think even basic programming knowledge can really help with that, because it makes it abundantly clear that a computer is, itself, a tool rather than a magic box (that happens to contain some tools in between all the scary and confusing stuff).
It isn't so much that I think everyone should be writing their own databases, but some understanding of how good software _should_ work, (for example, standard data formats), can guide informed decisions about software. Some basic technical knowledge is enough to understand why you should never build a large website on an ancient CMS where you end up with thousands of HTML pages that will need to be completely rewritten, one by one through some clunky web interface, when the site's design changes. Anyone should be able to look at that kind of setup and say "hey, that's complete garbage — let's hire someone who knows what they're doing!" and there will be a few less website janitors in the world. And hopefully a few more people making cool new stuff in their place.
Sorry, that kind of veered off course :/