No doubt. So how do private hot keepers save lives by keeping poisonous snakes? Sounds like just a hobby in most cases, and a dangerous one. I am not against dangerous hobbies if the danger is only to the individual participating. If I knew a neighbor was keeping cobras or other super poisonous snakes at his house that would be a major concern for me.
They save lives by milking the snakes. Do a google search on medicines derived from snake venom. The list is very long and very wide ranging. All of the labs that develop these medicines buy the venom or snakes or borrow the snakes for a period of time from... yep, you guessed it, private keepers.