Paul Hellyer, who was Canada's Minister of National Defense from 1963 to 1967, gave an interview to Russia Today that was interesting to say the least. He claims that space aliens would be more willing to share technology "if we would go about it peacefully."
Hellyer says most of the aliens are benevolent but are ticked off about how we treat the planet:
They don't think we are good stewards of our planet, we're clear cutting our forests, we're polluting our rivers and our lakes, and we're dumping sewage in the oceans, and we're doing all sorts of things which are not what good stewards of their homes should be doing. They don't like that and they made it very clear.
I suspect that they are because there is what is called a "Federation" of these people and they have rules. For example, one of the rules is that they don't interfere with our affairs unless there are invited to – and that's one of the reasons, probably, that we haven't seen more of them until very recently.
A Federation of worlds with a prime imperative to not interfere with a world's development. That might be an good premise for a TV show or movie.
You can read the transcript of the interview here.