Google Plus One and SEO

How long is going to be the road of togetherness??? Google Plus One is an open challenge to Facebook and Twitter.

I am always bewildered about organic SEO. Is Google Pluse One a new gateway or just a promotion way. I do not think that organic SEO is self propelled these days, it is more about asking favor for your link post on various social networking sites. But why?? It is more about posting links to various bookmarking sites and sharing. What I see for the purpose of promotion webmasters post link to various sites but 1 out of 1000s links actually get any real vote without actually asking for it. Similarly I find on sites like stumbleupon, facebook you keep adding friends in your network and posting links which are not of their interest and ask for favor to go through. Actually your friends in your network they open the link for sure but they never go through as the web page is not of their interest. So, how is this actually going to boost ranking of a website??? No, this increases bounce rate.