Yes, the people who have names are civil servants leading the security services and believe that these things are their responsibility to implement to achieve their aims.
I didn't say anything about taking over the world. These people are doing interviews (Ken McCallum has done several interviews, he is appearing on podcasts which is part of their new media strategy - https://www.bbc.com/news/articles/c4g2nwlpw1yo - this is an example, do you not know any journalists? How do you think a story like this gets written? Lol) and they are extremely explicit about this. The UK has a problem with terrorism, they believe that by breaking encryption they will be able to catch more terrorists. Again, they are doing interviews with the media telling you this, you don't have to have a complex world view that relies on shadowy cabals...they are telling you they are doing this, they are incentivized to do this, they are the only people with the power to do this.
It isn't a bizarre power grab, these people have legal powers, they are using these powers. Why do you think a billionaire is powerful? What legal powers does he have to break encryption? Can he arrest you? Is the history of the 20th century an example of governments overusing their powers or billionaires? Illogical.
If billionaires were making money from the government, you would see growth. The UK isn't growing. They aren't driving things because nothing that is happening is helping business. The assumption that you are making is that they secretly control everything...but what is happening now that is benefitting them? The size of the state is growing rapidly, they have effective lobbying power...because they run the government...this isn't a conspiracy theory, this is just logic. The people who have power...are the people with power. In the UK, if you actually understand how government works which you appear not to, elected officials have clearly limited powers over the departments they control. We had an election, and you are seeing the government cycle through the exact same policies that have been suggested by civil servants (which ministers are legally unable to dismiss). Is this the billionaires again? Lol.
This blanket refusal to actually look at what is happening rather than drop this world view that is embedded into personality is why the UK is collapsing. Who do you think is running the government other than the government?
I know civil servants at every level, I know MPs, why do you assume that everyone is as ignorant as you? I worked in politics. No-one who works in politics and is aware of how government works disputes this. Senior civil servants do not dispute it is happening, I believe the last three Civil Service heads have said this is happening. The narrative of "the billionaires" is something that no-one believes, it only exists to fool credulous children, I would go so far as to say (in my experience) unions do not actually believe this anymore...I am not sure who actually believes it apart from people unaware of how government works. However, there are two issues: reform is very hard because any government needs civil servants to do things (as an example, the creation of Border Force was an attempt to reform a part of the government that was out of control, it happened then Home Office civil servants spent years attempting to bring it down and limit their power, which is delegated to a substantial degree), and the Civil Service has been very successful in appearing to do enough (for example, they present a policy choice, that policy choice is ineffective by design but it sounds like something that can be sold...almost all Treasury policies are like this, they cannot work, at some level i assume ministers know they cannot work but there is something to announce, it usually is designed to sound good...I am not sure why this isn't obvious either, we have years now of governments announcing policies with no impact, you aren't slightly suspicious about why? Credulous).