To be fair, I don't think the prostitution analogy holds too well here. At least a prostitute is providing a service that there is legitimate demand for from the end user. You could also argue that one could "clean it up" by making it safer and better regulated.
A more apt analogy might be drug dealers subsidising medication by cutting it with heroin.
> To be fair, I don't think the prostitution analogy holds too well here.
I agree. That's why I often tell people that I have higher regard for prostitution than for telemarketing - the former at least provide value in response to a genuine need (whether we feel it's beneficial for society or not). Telemarketers however, just like install bundlers, actively try to exploit people.