There are a number of problems in the world somewhat
related to our
mission---illiterate people can't read a written encyclopedia in any
language; people in countries with no internet access can't edit
wikipedia; people in poverty don't have time to work on a wiki
encyclopedia; people living under oppressive governments can't edit
wikipedia freely; etc.
I certainly don't think we should try to solve all those. We can try to
mitigate problems where it's not that hard to do so (e.g. by producing
paper versions to distribute to non-internet-connected areas), but some
of them---like solving the "digital divide" or world hunger, or
overthrowing oppressive governments---are somewhat out of our areas of
core competence.
Or by receiving money in order to do something about specific
problems. :)
I don't think we can or should try to solve any of those problems. But
we can help a little bit, at least with the stuff you mention in the
first paragraph. I don't see any reason to mention world hunger, digital
divide or similar general concepts in this discussion...