A) Google: 1) Websites exist to provide information for people that want it. 2) Websites can opt-out of being indexed 3) Google indexes those sites which have not opted-out 4) Google provides a service for people to search that index to find services/information they are looking for. 5) People sometimes search for "bad things" like unauthorized content
B) Telcos 1) People and Businesses get telephones so friends/customers can contact them. 2) They can opt-out of being listed (indexed) [ unlisted number] 3) Telco & Yellow Pages index all the phone numbers/names which have not opted-out 4) Telco & YP provide a search service so customers can find what they are looking for (used to be a free book delivered to your house) 5) People sometimes searched for "Bad Things" (like escort services)
... many of those very early games were "give-aways" with the high-end graphic cards of the day - I think I got my castle wolfenstein with a turtle beach graphics card...the gaming culture itself was kickstarted not from store sales - but from these early freebies.