as people have already posted, the number of settlement visa's is about 50,000 a year , so if they all worked that's 50,000 less jobs for Brits and Europeans
not much when you compare it to the number of EU citizens that have taken jobs in the uk

your right in my case, only 6 months b4 i was going to apply for my misses spouse visa i was made redundant, took the first job i could find and applied for the visa, i wouldn't have meet the proposed minimum income then. my wife start training as a GP in Aug, its not to take account of your partners earning no matter how large or small , its unfair and unjust