Re: He's on Ecuadorian Soil...
The original offence he committed in the UK was skipping bail by fleeing to a foreign country (Ecuador), are you arguing that this isn't the case?
Also, as far as I know, there's no country in the world that thinks that self imprisonment counts as time served. Not the UK, not Sweden, and not Ecuador either.
The irony is that the maximum punishment for failing to attend court (technically it's not breaking your bail conditions that gets you into trouble, it's missing court) is twelve months in a prison which would almost certainly be nicer than living in one room of an embassy.
Oh, and if you're worried about getting extradited to the US more than rape charges then you should stay in Sweden, not run to the UK.