why is Obama on the side of The private health insurance companies and the pharmaceutical industries?

Obama, like John McCain, did not support HR 676, the single-payer legislation. when would the Democrats learn that there is a cost to be paid for working on behalf of corporations and dis-empowering citizens. isn't "change" his main slogan? should he change his plan regarding health plan? http://www.alternet.org/healthwellness/9…
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To be fair, McCain seems to be more on side with them than Obama. At least Obama is going to try to do something about the death rate of American children. FACT- the USA spends more on healthcare per person than any other nation on the planet. FACT - US kids aged under five are more likely to die than kids in western European countries with universal healthcare.
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