I guess it's not clear to me why (at least in the 'first world') it's wrong for quants and engineers to pay something for the tools they use. (i have spent a fair amount of time contributing to open-source, so I've no problem with OS generally, but I also don't think their is anything wrong with the folks at Matlab getting paid for their efforts. Quants are sure as hell getting paid for theirs).
The better the free software, the greater the exploitation by other people making a bunch of money on it, while the devs work nights and weekends for nothing. I don't have a solution, but there it is.
