At that point, does it particularly matter if it's altruistic or not if the person is helping others for their own selfish gain, or for the benefit of others?

At that point, does it particularly matter if it's altruistic or not if the person is helping others for their own selfish gain, or for the benefit of others? For example, a restaurant owner might serve food for free for homeless people for increasing their own reputation and social wellbeing, vs the owner who does it entirely out of the goodness of their hearts. The net result is the same, so why worry so much about the motivation behind it? I'd say they're both equally good people, in this example. Being able to be generous and therefore altruistic is also a decent signal to the rest of your group you're fit and healthy.