Are petty first world problems with our capitalistic ideology actually worse than some problems faced in third world countries?

Yes, the issues faced by the rest of the world are far more severe but let me explain. In a capitalist society we are conditioned to believe that we can do better, that we always deserve the best. But because we are taught that way we are always left wanting more. Even those who have all they could ask for often find themselves feeling unfulfilled. There is no place for contentment. Thus, many people are left suffering from depression because no matter how hard they try in the end they are told they still aren't doing good enough. However, it appears that in many third world countries where they have not adopted this ideology the people are often more capable of being happy. They don't need to have new things or a lot of money because they are content with just surviving. It really comes down to one is facing internal conflicts while the other external.