Because it has proven to be the "virtuous" option.
Nobel prize winning economist Joe Stiglitz notes:
What Iceland did was right. It would have been wrong to burden future generations with the mistakes of the financial system.
Nobel prize winning economist Paul Krugman writes:
What [Iceland's recovery] demonstrated was the … case for letting creditors of private banks gone wild eat the losses.
Krugman also says:
A funny thing happened on the way to economic Armageddon: Iceland’s very desperation made conventional behavior impossible, freeing the nation to break the rules. Where everyone else bailed out the bankers and made the public pay the price, Iceland let the banks go bust and actually expanded its social safety net. Where everyone else was fixated on trying to placate international investors, Iceland imposed temporary controls on the movement of capital to give itself room to maneuver.
Iceland holds some key lessons for nations trying to survive bailouts after the island’s approach to its rescue led to a “surprisingly” strong recovery, the International Monetary Fund’s mission chief to the country said.
Iceland’s commitment to its program, a decision to push losses on to bondholders instead of taxpayers and the safeguarding of a welfare system that shielded the unemployed from penury helped propel the nation from collapse toward recovery, according to the Washington-based fund. (the IMF)
I am quoting all this from:
I realize the chances of this petition taking hold are slim. But "who knows"? Hope springs eternal