Why would he be helped if he truly doesn't give? He speaks about this a little:
the person being aided can reciprocate with degrees of humility, dependency, gratitude, surprise, trust, delight, relief, and amusement
which, at the time, was genuinely valuable [0].[0] Discussed more at https://news.ycombinator.com/item?id=46555688
You left off this part:
> It takes some practice to enable this exchange when you don’t feel desperate.
Which to me means that he had to fake the reciprocity.