Uber operates in "strict" (as in 'technically correct') adherence to local policy. That means, in places where the policy is strict, like for example Italy (Milan), they have only licensed taxi drivers with licensed taxi cars. And where law allows (even with a loophole) they have less.
Uber is structured so that each country has one business entity, thus it's very easy for them to say "our Swiss entity does not do any such thing in Switzerland". Many EU countries have similar laws too, btw - and they have a very clear separation of base price and promo price here, and the base price is regulated.