'Truth, justice and the American way,' not Obama for sure

Those of my generation grew up hearing the phrase: "Truth, Justice and The American Way" It was Superman's pledge to lead the world in morality and justice for all. No doubt; if Obama had been there, the PA's Abbas wouldn't have had been the only one with a big grin plastered on his face.
Even expats, like myself, rather disenchanted with today's America certainly expected to see the American President among the world leaders at the anti-terrorism rally in Paris, France. With Obama's above average physical height, he would have certainly ended up in the center, so the photos would look well-balanced.
But not only didn't Obama bother showing up, he didn't even send an important figure from his administration, not his Vice President, nor his Secretary of State or even his wife.
The 21st Century United States of America isn't the country I once knew. It seems like all the old value systems have gone kaput. There was a time, not all that long ago, when the American President would drop all plans and rush to show his horror at such brutal terrorism.
Even if the only real reason he'd be going would to show that America condemns terrorism and cares about freedom and justice more than any other country, and to prevent articles like this. It's clear that the United States is no longer a world leader fighting for truth and justice.
The American way is at best back to the pre-World War Two isolationism. Don't forget there was also an infatuation with Nazism by many Americans.