To do that the chip would have to be designed to have that feature already. Otherwise it's like looking at a bicycle and wishing you could repurpose it into being a plane. The structure is just not there to do that sort of modification.
Eh, not really. I don't think any form of electronics is recyclable, best you probably get is third world countries burning the boards to get the gold out and killing themselves with the gases produced.
Well some of it can be recycled, like rare metals, but you are right that the majority of the value is in the combination of those raw materials, rather than the materials themselves.