I don't love Schoeller fabric as an every day material. It reminds me of ski pants I had in the 1980s. IMO Outlier is on the right track, as it were. But they're getting closer...
I have the perfect cycle/work pant in mind, which would be closer to what Rapha is selling, -- http://www.rapha.cc/rapha-trousers
-- but with a slightly canted rear waistband and a better shoe/pant interface solution (perhaps hidden button/loop so you can roll them up.
Still, the main problem is that once you introduce enough stretch into the fabric to be truly comfortable when riding, you cross over into a "technical" look, which doesn't fly in most workplaces.
(Sorry, I've thought a lot about this b/c I ride a lot.)