“Scores” is also used as a rhetorical device to mean “too many” (in fact, I doubt more than 10% of people can define “score” as 20). “Few”, meaning “more than a couple” often implies that there isnt enough of something to matter. Id say that -given that turf violence is a thing - even a couple (two), of competing drug dealers are too many in “tiny dead-end street”.

Human minds are not compilers, we’re capable of nuance. Being as pedantic as when you're programming is counter productive in human conversation.