[lucb1e]

Osm is donation funded. For all your scepticism you could have found that in seconds. People contribute for fun, not because they boss told them to fly this later drone around so their expensive software can process it. That saves a lot of cost. The hardware is nearly free, look at Wikipedia: they beg for your money every few months but of the millions collected, a fraction actually goes to the hosting they imply it's for.

Osm also takes data from governments and other organisations that publish it, but only if it's already available under a compatible free license. Not sure where you see that tie in with corruption (which additionally is much more frequent in the private sector but maybe that depends on your country, but since there are no big bucks flowing in and all financial records are public and are plausible for what they do (I looked through it), the point is moot anyway).