The isssue or need that comes first is man's need to escape the everyday environs to a pleasure garden (or venue) to meet, socialise, debate something, or recreate. Had the Babylonians, Greeks, Romans, Egyptians, Phonecians, or any other organized culture (B.G - before golf) known the game, I guarantee they would have had artistic and motivated citizens that would have designed a place that reflected their ideal (artificial emmulating natural, minimalistically altered natural, or artificial nothing like natural) and they would have all gathered to debate which venue was more aesthetically and functionally valid.
Mankind is changeable and varies within their lifetimes their thoughts on what is enjoyable to do or pursue, what is aesthetically pleasing, and to what degree they appreciate their natural environment. I think the closer you get to the leaving time of the natural environment, the more you come to love it purely for its' natural being. When you are younger, you are more captivated by the technical possibility/capability of the manipulation to enhnance or emmulate or completely cheat nature that man attains. Then, later you gravitate to the wonderous real creation that is just there for us, conferred to us by whatever powers you may or may not believe exists.
Places of contemplation, pleasure, or competitive pursuit (all of which the pleasure gardens that are golf courses) are just our recent (couple of hundred years) gardens that slip in beside all the other pleasure places we have created for ourselves.
Single most important pleasure garden (venue)? Not by a long shot... too many stadiums, racetracts
, ski hills, and Oriental gardens, and City parks and gardens to say that...