"Good with money"?
I asked HMRC via Freedom of Information what it's cost them to mount these legal proceedings. They know what they spent on external lawyers (ie. quite a bit), but can't say what it cost them internally to investigate, build the case, go to the tribunals etc. Apparently they don't use timesheets or any sort of project accounting.
So in short... if someone inside HMRC wants to bring one of these cases, it doesn't really "cost" anything. They might spend a million quid to collect a thousand, but they wouldn't ever know that - they'd just come back to the office with the thousand pounds and celebrate "coming out on top". So expect more frivolous law suits to take place.
Your hard earned tax being well spent - not on the NHS or schools or whatever else you care about - but on HMRC employees and their laywers. Great.