English is not my first language, sorry, I think I didn't express myself well. I meant that we shouldn't be too naive when considering what other people might make of technology, just because we're idealistic.

But we're still idealistic because at the end of the day, we're not only responsible of what we do with technology ourselves, but when we create things we're always enabling others to use them; be it by giving them away freely, and maybe a bit more critically when selling.

There was a case once where a software project amended the GNU GPL with a no military use clause... On that note, you can never tell exactly who your customers are, and you shouldn't fit technology with a built-in kill switch or have it call home, which is just the worst of all options, as seen with several unpopular videogame companies.