Hello, young serious PhD.
I am one of these scientific staff you're irritated with, and although I no longer keep a twitter account, I have some free advice for you:
Nobody gives a shit about what you do. Nobody cares about your science. You're one of seventeen bazillion young scientists, and you'll be increasingly desperate as you recognize that the eleventy-hundred bazillion older scientists are not conveniently retiring or dying or otherwise vacating their jobs. And it's probably as it should be, no one caring about your science. It's a minority of the population who will understand, even in the most general terms, what you do, and frankly it's unlikely that what you do will be terribly important scientifically. If you're lucky you'll have one or more "contributions" that actually contribute, rather than larding a journal so you can get a job.
The thing is, though, you want money. You want people to give you quite a lot of it to do what you do. Since none of your mentors have won a war or mapped the oceans lately, the people handing over the money aren't as keen on science as they might be. I mean to get real public enthusiasm you've got to win a big one for the team. And if you're halfway honest you'll have to admit that they aren't wrong: yes, *you* like knowing lots of things about the universe, and finding out new and quite useless things just for the hell of it, but most people don't, really, and the promise of "it might be fantastically useful someday" falls a little flat when housing costs what it does. It's not unreasonable to ask why science spending shouldn't go to a select half a bazillion young people rather than all of you, since some of you surely waste more money than others do.
So unless you're really keen on the ideas of self-funding and small science, it's *really not a bad idea* to talk to the nonscientists who're actually interested in science, and let them advocate for you. It's not a gigantic group of people, but it's also not small or without influence. It's also not a bad idea to learn how to talk easily and off-the-cuff about your work in English, and talking about your work on social media is a good way of practicing.
As you go on in your work, by the way, you'll find you're being called on to do all sorts of things that aren't actually doing science. You'll be asked to teach, formally and informally, which involves more than reading a lot of powerpoint slides aloud. You'll be asked to help in the project of showing people why science is worthwhile -- science in general, not just your bit. You'll have administrative and departmental responsibilities. You'll have to be a mentor, and it's terrible to be a bad mentor. You'll be called on to be aware of social realities you want nothing to do with, but you'll have to, because science is a social enterprise. You'll probably be asked to engage in various types of fraud and taking-advantage of young people, too, and you'll have to figure out what to do about that.
None of this is specific to science. There is no work, no serious work, that does not also involve sales and hobnobbing and administration and teaching and fraud, one way or another. Your facility with these things, and your wisdom in navigating, will determine in part what real work you're able to do.
/free advice
