Even though Lance knew these things, he still nodded and thanked him, because generally people wouldn't share this kind of information with you.
Even if they wanted to tell you, it would only be after you've fallen hard that they'd come out like a good person and tell you what you should do, not before you've been hurt by the fall.
Without the pain of a fall, their advice and experience are less valuable, and it isn't as effective as telling you after you've been hurt.
It's clear that Councilman Williams speaks so bluntly because he is laying the groundwork for James, or rather for the Williams family.
"Thank you for sharing your experience, Councilman Williams."
Councilman Williams laughed heartily, he took two glasses of wine from the waiter's tray, handed one to Lance, "Pleasure to cooperate, Lance."
"Pleasure to cooperate!"
On the way back, Lance saw William chatting with Charlie, when they saw Lance approaching, they proactively greeted him.
