Even without addressing whether the determination of a one-size-fits-all "goal weight" is arbitrary, the "goal weight" for a pregnant woman differs from that of a nonpregnant one. Medical professionals consider a certain range of weight gain during pregnancy to be healthy, even desirable. A "goal weight" that screens out pregnant women -- whether as new hires or with regard to retention -- is immoral and should be illegal.
I don't know where people got the idea that e-cigarettes don't stink. I've been around people "vaping," and it does stink. The addictive behavior of the "vapers" is unsavory, too, at least to me. I prefer not to be forced to be around people "fiending" for any kind of drug.
Actually, Bewarebias, I think the issue is more properly framed as Papa John would rather protect his shareholders than his employees, since the employees would be the biggest beneficiaries of a health insurance plan. Most pizza places don't offer insurance benefits to their non-management employees. Ultimately, having more people insured -- especially, young, healthy, persons, as you pointed out -- should bring down healthcare, and insurance, costs for everyone.