http://borgenproject.org/the-cost-to-end-world-hunger/
Americans spend $12 billion on bottled water:
http://www.businessinsider.com/bottled-water-costs-2000x-mor...
Criticizing someone for doing good in the world while still enjoying their lives is a bit immature. As you've mentioned, we all have luxuries with our large screen TV's, cars, homes, etc.
Americans spend $60 billion on their pets every year: http://www.nbcnews.com/business/consumer/americans-will-spen...
Rather than complaining that rich people aren't doing enough, perhaps a lot more people can make more of an effort.