the bigger the income the country is rich. you'll have nuclear weapons, submarines, jet planes, warships, and the more you complain about income tax, the country you belongs to, gets respected by other countries knowing that you have crazy weapons that could make a place vanish that's all i know. lol.
Having things such as warships and nuclear weapons does not mean a country will be respected. There is huge border that separates respect and fear. Therefore, one should not be proud of things such as these.
Furthermore, not because a country belongs in the Third World does not mean they are basically poor as there are other factors to be considered for this. (Moreover, the word Third World has a deeper meaning and history.) Some of these countries also is also labeled with such due to high population or because of its low technological advancement and dependence on other countries' economy. In addition, First World Countries are countries which had already explored and exploited almost all of their natural resources, but Third World Countries natural resources remain untouched and unexploited because of the low advancement in technology, which is good for the country, since they can focus on different fields such as agriculture, fisheries, commodity trade and such. Higher income also means higher tax, too.