Two points. While a small study, this is a good example of the critical difference between studies that measure hypotheticals, abstract thought experiments, or loose proxies for the variable you are actually interested in versus those studies that measure the actual behavior, the revealed preference in economic parlance.
Second, the "intrinsic religiosity" is a hint at the core role of culture in decision-making.
Seventy-eight per cent of the business students offered some kind of help to the stranger. Sixty-six per cent went so far as refusing to leave the stranger or giving him/her their mobile phone. The degree to which the students reported being wealth-driven was not associated with their levels of helping. Neither was their self-reported willingness to accept an illegal stock trading tip off. Being in a hurry also made no difference, neither did the content of the speech they were about to give. A factor that was linked with helping behaviour was “intrinsic religiosity” – that is, pursuing religion as an end in itself, not for the sake of status or other gain.