The UK isn't the best place for software people in my opinion. I have been around for a little over 10 years in the field now and worked for big, medium and small companies. I think this is because people seem to gamble more in SF by investing in companies which we don't really have much of in the UK. You don't get the big angel investors or VCs sticking a million £ into a start up. I know of a few start ups that got some VC funding but most were small under £100k investments and normally by many people. Crowd funding seems to be picking up a bit here though.
I certainly feel valued as an intellectual everywhere I have worked but I may just be lucky?
Disclaimer : I'm not from the UK, nor have I ever worked there
The UK as a whole has long had a reputation for having low wages relative to the US. Anecdotally, I recall coming across a mention here on HN where certain dev jobs were being classified as "clerical" and offered at around ~$20k - $25k USD equivalent.
Tech: Primarily Java with some C, C++ and more recently Go (although Go is only in our code playground, nothing even close to production yet)
Location: West London
Company: Small but well established (since 1996). There are 4 developers including myself. One software is one part of what we offer.
Edit: I know you said without benefits, etc. but I included it for others as well. Just look at the £85k figure if you want a hard number.