I can see your points, but would put forth the counter argument that a 5 year span is nowhere near the amount of time needed to make an assessment of a cultures incline/decline, but that the data needs to be more or less examined over a generational set of years. Seeing as how incline has been the ever popular choice since basically the renaissance I don't see that changing anytime soon.
Of course there is (and always have been if you research enough) psychos that snap for whatever reason and go on a killing rampage, or demagogues that want to kill a particular racial/national group of people for "whatever" insane reason, and nothing will change that. However from a general, statistical, and objective view technology has increased our ability to farm, get drinkable water, communicate, treat disease, have a light turn on when we interface a tactile switch, things we all take for granted. In the coming years science looks to perfect ways to create more food supply, more energy through more efficient means, genealogical science to help prevent disease in the first place as opposed to treat, slow aging. Sadly most of us will be too dead to benefit.
Most importantly no matter how far we progress there are always going to be total fucking assholes that seem to exist just to fuck up everybody else's fun and that sucks. Our current justice system, while imperfect, is still almost historically unheard of in terms of rules, and general fairness of the precedings.
Also pertaining to self-centeredness, I suggest you read the Monkeysphere as it simultaneously makes light of, and seriously addresses several key issues that are simply part of our overall survival make-up. Of course even that is just the neological tinkering of a series of actual studies based on our neocortex.