Of course, our political system is not designed to be perfectly democratic. Perhaps seasoned pols, the superdelegates, know best. But Democrats reflexively denounce any check on the naked popular will as tantamount to "disenfranchisement," especially of black voters. Already, Al Sharpton and NAACP head Julian Bond are arguing over how racist it is not to seat the Florida and Michigan delegations. If Clinton denies Obama the nomination despite losing the popular vote, she will open herself to inflammatory charges of disregarding black votes of the sort that she and her husband would eagerly resort to if circumstances were different.
Hillary herself was once a democratic supremacist. After the disputed 2000 election, she supported abolishing the Electoral College. "I believe strongly that in a democracy," she said, "we should respect the will of the people." At least until that strong belief ran up against her pursuit of a presidential nomination. "I hope no one is ever in doubt again about whether their vote counts," she said. This turns out to have been a wan hope.
Her attitude clearly is to win, no matter how, and worry about the repair job later. There's no benefit to her in being a graceful loser, since she'll probably never run again. And besides, she's not going to defer to a callow, two-year senator trying to deny her what she's rightfully entitled. There's only ethic that accords with her interests and her style -- by any means necessary.