Alessandro wanted to the victims of the recent earthquake in italy. he anonymously established a fund to the families of the victims. even inside the banks no one knew who had done this. alessandro did this without any desire for external or internal rewards. this is an example of

This is an example of pure altruism.
Alessandro helped those victims out of the goodness of his heart -  he didn't want any sort of rewards for what he did, be those extrinsic or intrinsic. This is the reason why he did everything anonymously and never told anyone about his actions - because all he wanted to do was to help those in need.