How Do I Win?

So I'm sitting down in S3. Not the best place to be, but oh well I'm slowly rising. I've just had a few awkward games where I do great, I do my part but the rest of my team can't do their part. Just to make this more clear this is how I did:

Zac Jungle 8/5/33 5 Dragons 2 Barons At one point had both Elder Dragon and Baron buff at the same time

I spent most of my time living in bot lane, and if I wasn't there I was stealing enemy buffs. I went mid and got my mid laner to the point she pubstomped the enemy Ahri to be 3/11. Top was even all game, so I left it be. We only lost one dragon, a Mountain. During the time we had both Baron and Elder we had towers and inhibs in top and bot, a missing inhib with about 30 seconds till it respawned and the enemy mid inhibitor down.

Now it goes to say that multiple times throughout the match I've pinged either to back off, or to push an objective and watched as my team decidedly ignored my pings, resulting in them dying. (Like what adc stays in bot with less than 200hp?) But regardless of what I did to ensure my game going smoothly, be it: Sticking to the AD and forcing picks with wards I've dropped in enemy jungle, or picking up strong objectives like Elder and Baron; I just cannot get my team to commit to pushing or using advantages I've given them. I attempt to get them to siege an inhib, and not 30 seconds into it, most of them split off to take camps, even though we had 3 dragons over out team, two Ocean and one Infernal.

tl;dr

How do I win when I forcibly give my team advantages and they refuse to profit off said advantages.