I disagree rather fervently with number seven. A person starving to death in the midst of a desert would see his life /quantifiably/ improved if given water, food and shelter. That's got less to do with his perspective and more to do with the fact that his probability of /dying/ is rather drastically decreased in the short term.

It gets a little murky when the fundamental necessities are taken care of, but it doesn't mean that the only reason a homeless person's not happy is because his or her perspective is wrong. Some things go a bit beyond internal factors.