Playing devil's advocate a bit here so don't flame me. I wouldn't personally actually want any of this. 
If (and only if) you beleive that benefits should be means-tested and only available to the needy then do you think the same of hospitals and schools?
Is giving free medical treatment (especially non-life threatening) and free education (especially at the top state schools) to the very wealthy just as inequitable as non-means tested benefits?
The "why should a poor working family be paying tax to be paid in benefits to the rich?" arguement applies just as much to hospitals and schools doesn't it?