Imagine if wewe won the lottery,in a way yes,and in a way,no. If wewe spent money to buy materialistic objects for your own pleasure,then yes,it does make wewe happy. :) But where Marafiki are concerned,sometimes wewe don't know if they really like wewe for yourself,or your money. So I suppose it depends on what wewe define as "happiness"! :P
Money can only buy tangible things, and such things can bring some happiness (Usually temporary.) But when it all comes down to it, happiness usually requires tangible things, and many of such things can only be bought with money, so it is zaidi like money generally (but not always) required for happiness, but money can only buy tangible objects.
At the same time, money can cause unhappiness, for example some of your Marafiki may decide to mooch off wewe for either money au tangible things, this can cause wewe to be unhappy, there may be some people after your money, that can bring discomfort, au what happens when wewe run out? That lack of money caused be being used to a surplus of money can bring unhappiness.
I don't think that money and happiness should be so readily compared, they have a zaidi complicated relationship than what appears at first glance.
In this society, to a certian extent: yes. There's no getting away from it:money is a magical happiness-provider. Even if wewe don't use the money for youself wewe can use it to help childrens hosiptals and such, and wewe will feel so happy for doing that, and they will be happy they can lead a good life because of your money donation. Money is an amazing thing, and if i was rich i'd turn myself into a real-life santa claus and help everyone in need. it would feel amazing. not to mention having a nice life yourself too.