I think banning usurious interest rates can be elitist. But a lot of upper middle class politicians don't understand how expensive it can be to not have money. And getting hit with overdraft fees, having your electricity shut off, or not being able to make it to work because your car broke down can all be very expensive and make the usurious interest rates look cheap.
I don't see the connection but restricting medicine but I do think that non addictive medication is overly restricted.
Smoking and gambling(and drinking) are specific vices and restricting them isn't elitist but banning pall malls would be.
I'm not against elitist policies in principle. Of there is a lot of data that a particular intervention has a strong positive effect than I'm for it. But I'm just suspicious of a bunch upper middle class politicians deciding what's best for a lower class one and legislating away their options.