It could be said though, that a lot of the leading Bremainers have strong connections to government jobs, no? What I'm saying is, if the Brexiter's dayjob has "corrupted" them, the same could be said about their opponents, no?

I doubt that most British people in finance were Brexiters, but rather Bremainers. And so it's not the job that tainted them, but rather the job they chose suited their personal traits.