We'll be hitting that moral question within the next few centuries when we start colonising Mars, if we find microbial lifeforms on Mars then what do we do? The ultimate goal of human existence on Mars would be to terraform the planet to suit us as much as we will transform ourselves to suit it, but in doing so we will drastically change the environment for these microbes and may even destroy them. It wouldn't be the first time in history that we've done that...and that's not even beginning to factor in cross-planetary contamination, although generally speaking we're pretty good at trying to cut the risk of that down.
Still, whatever might exist in the Trappist system it's not got radio or television before the 1970s.
You know, it's a shame we can't just gather up all the nuclear weapons in the world and put them on an Orion drive ship...would be a much better use for them than blowing each other to smithereens.
Of course, the downside is that an Orion drive ship is the space equivalent of a Volkswagen, so we will probably get fined for emissions breaches.
