Giving gifts is indeed an art, and the rules vary greatly depending on the person who is getting the gift.
The best response for ordinary people is to put money in place, much like Yun, if you can support a legitimate version, they would be very satisfied. If you could also vote, tip or whatever on top of that, you can move that inexperienced guy beyond words.
However, when someone's realm is high enough, gifting him expensive items might not necessarily be wrong, but certainly won't achieve the best effect.
Speak, speak to the core of one's heart,
Give gifts, present it straight to the heart!
Only in this way can an ordinary gift achieve the maximum effect.
As powerful as Zhang Sanfeng is, he surely won't lack some mundane items, so Ye Weiming feels that it would be better to keep such vulgar things like gold and silver to insult himself.