Besides actual lead concentration in water being disputed (per comments in the parallel subthreads), I think this analogy isn't good for another reason - Roman aqueducts were meant to solve a problem, to get fresh water into towns, improving comfort as well as sanitation. Most apps made today are not about solving problems, they're about bundling a minimum amount of features that would trick the users into doing something (paying with money, paying with daya) that profits the app creators.