This is a global leaderboard, from all the players compete ting, and you try and get on a leaderboard for the top 50, top 50 out of how many players that are competing? If you even make it close to LB that's well done! It's possible for a non plat user to get on LB, just takes more time, hence the reason there is platinum to speed up your gameplay...

Again why would Sts make it easy for non plat users to get in LB, then... What happens to StS's income?

Get to gold tier, and there's your prize for non plat user, or save token buy all items for tokens, and if you want the LB banner, keep going for that 3 weeks and you will make it!