Applied as it is hear, unless I'm missing something, your take means that there's no point or legitimacy to any conversation (EG a HN post) about any new UK agency (or sewage plant, school, energy plan, etc.) besides "they're corrupt, look at their other dealings."
I'm sympathetic to the moral principles. In particular, some have made the case that salacious shamelessness itself is the problem. It's corrosive.
But... Are you really at a point where you're calling quits on politics as a whole until this corruption stuff is sorted? Isn't this corrosive too?
I'm not saying that you can't put anticorruption first. It's definitely relevant here. This is a way of distributing money and contracts, after all. It is designed to not be accountable in conventional ways. Anticorruption is relevant and it's good to have people making that their top priority. But anticorruption is not the only thing at stake in anything and everything government related. There's also whatever the hell the thing is supposed to do.
Being uncorrupt, but failing to produce useful technology is also be bad. Maybe not murder bad, but I didn't think this is a useful way of thinking about it.