He did it for free

[Earlier: Prior to Penny and Zoren's arrival at the Base.]

"Oh, my god…" Penny was still in disbelief at what she had just learned from Zoren. "Butler—Butler Lee is part of the Phantom Circle? How?" 

"Long story short, Butler Lee was separated from his family as a child. He led a troubled life growing up. Years later, he and Butler Hubert reunited," Zoren answered with a shrug. "It was Grandma who offered him a chance to live a quiet life."

"Grandma offered him a quiet life on the island?" Penny repeated, and he nodded. "And you offered him the opposite of that. Renren, I didn't know you had a rebellious phase!" 

"I gave him something that made him feel alive." 

Penny scrunched up her nose, momentarily wondering who she had married. But then again, she was grateful that her husband was being upfront about it. 

Still… wasn't that a red flag?