I think you're greatly underestimating the low hanging fruits in big important non-tech organisations like governments.

My lumberyard of choice still uses DOS machines for their computers and POS. I'm not saying you'll change the world by revolutionizing lumberyard inventory management software but I wanted to illustrate just how low the low hanging fruit are.

If it works what is wrong with DOS ?

But even if you redo the whole thing and it is efficient, it is still less than some minor performance improvement in Chrome can achieve for the world.

Spare parts, for one. BART for example is dependent on old computer parts from Ebay to keep the Bay Area's main mass transit system running: https://news.ycombinator.com/item?id=32884814

Speaking as a customer, it's slow, annoying, and makes the shopping experience there miserable. If you innovate in that software space, you might be able to make a significant impact on the trade of certified exotic wood and maybe even save a few species of tree.

IF somebody could make 6-figure comp writing lumberyard inventory management systems, they would

Make a SasS, the potential is there.

Yes but non-tech organizations are often a disaster for getting even simple things done--crap like filing tickets to get something simple approved like provisioning something via a Cloud provider paired with loads of bureaucracy and (often) lower skilled employees are not an ideal arrangement for picking said fruit.