That's because you think in terms of conspiracy all the time. There are actually a multiple of different factions within each party. That's why Obama took Hillary down in 08'. His faction was stronger than the Clinton faction. And it may happen again to her. She is a very poor candidate whose negative numbers seem to grow each time they expose her to the public. Most people really don't like her.
On the other hand Joe Biden is a very likeable gaffe clown. He is probably being pushed by the Obama faction to run. Obama does not want all of his left wing wacko changes to fall by the wayside should there be a new republican President eager to over turn the mess he's made, (which Obama is quite proud of).
So, if you want to try to figure the whole thing out you have to stop thinking in terms of people "owning" other people. It's about which candidate is able to smoke the other one in a primary. If the smart money things Biden can defeat Hillary suddenly her money flow from big democrat donors will cease.
You with me Pitt?