I'm only half way to legend, but let's see how these thoughts check out...
Hack to Amateur - Learn how to time the meter a little. Play a few rounds and get comfy on a particular course (Kiawah or St. Andrews). As you adjust to the game, in general, you'll find yourself promoted.
Amateur to Pro - Start figuring out at some point that you may want some equipment. Maybe read a little in the forums and realize putting is where it's at in this game....as with real golf. Get good at hitting fairways and the fat parts of greens. Work on eliminating 3putts. Maybe a small upgraded putter and/or a driver. Start learning you are going to have to spend some money on the site or go blind on videos and surveys.
Pro to Tour Pro - Add a little length to your game. Start worrying about getting the ball inside 20 feet on approaches....10 with wedges. Start learning about flops, punches, and chips to save pars and make some birdies. Learn to hit from sand and deeper rough.
Focus on those and you are a Tour Pro without too much labor.
Tour Pro to Master - Now, you need to score. You realize it's going to take equipment to reach Master. You have likely upgraded all areas of equipment....maybe even the ball. (You are also completely hooked on the game, the forums, your CC, etc...lol) But, now you have to be very adept at saving par from almost anywhere, and you have to be in that position rarely. You are working on the finer aspects of the game.....topspin to run the ball up, backspin to try and hold a green, where to land the ball on the green to leave yourself a good chance at making the putt, chipping and trying to make it. Par is easy for you. Birdies are getting easier to come by, but bogeys occasionally trash a good score. The closer you hit to the pin, the more birdies you make.
Master to Tour Master - I'm sure it's more refinement of putting and short game. Punching your wedges like darts. And, of course adjusting your "putting eye" to the slick tourney greens. You have to play more break now. Putts you were able to just ram through the break make you a bit nervous now because you know you may have a 6 footer coming back if your meter jumps on you...lol. You likely need a higher level driver to close the distance gap again and start hitting 8 irons instead of 4 irons into those tourney greens.
Tour Master to Legend - Well, no way you haven't upgraded tons of stuff by now. You likely know the game inside and out when it comes to putting together your set of clubs. No distance gaps in your bag, and you know how to use all facets of your shots (except maybe the pitch shot). You hit it close, and you make the close and semi-close putts. You don't 3 putt and you don't fail to escape trouble.
Legend to Tour Legend - Dear God, who knows. But, you likely have a near flawless game from tee to green. And, your putting game is close to tops, too. 61 is a terrible score for you. Birdies and some eagles are the norm for you. Par is a failure. Make a bogey, and someone likely needs to talk you off the bridge.
Hope that's about right. But, I'm sure I'll learn how simplistic this was when I get a little further down the road.