I'm not sure it's worthy of a Bond villain but it's a start. ;)
Unfortunately, you can't outrun software's hidden assumptions behind correct functioning forever. There will come a time, much like Y2K for COBOL, that their critical database will just loose everything if they don't make an internal change that requires understanding all the Rust, BrainFuck, Verilog, and analog components I used "because I was learning analog at the time."
I can't predict what they will do facing such a situation. I can tell you to start a brewery of fine Scotch that sends flyers to them around the time of the feasibility study. You'll make a killing. :)
Honestly, it'd probably be worth the effort to just write the Rust up front. The kind of technical debt you'd land in otherwise... euurgh.
That's actually the point of my plan. :P