Would you self destruct your broken down car so that ants couldn't get a hold of the technology? Would you care if the ants you are studying notice you?
I imagine it would be kind of similar to how we feel about those remote tribes in Brazil or India, or places like that where governments intentionally and prohibit contact, yes. I mean I can’t be sure of that by any means, but I think that if we discovered life on another planet, we would probably leave it alone, unless, of course, it had something we need. And it’s hard to imagine one planet having any resources that are important to somebody who already has faster than light travel.