The paradox in Buddhism is that the more a person gives and the more one gives without seeking something in return the wealthier one will become.
Making offerings is an integral part of Buddhist spiritual practice. One of the main forms of making offerings is towards the Monk (Sangha) in the form of Almsgiving (dana) offering. It is definitely extremely meritorious to do so. SBA has also organized donation programs such as donations to flood victims in Sri Lanka.