“We should really look at them as role models,” Ms. LuPone said of the two tycoons.

“They were really inspiring,” Ms. Ebersole said.

“My God,” Ms LuPone said. “Regardless of what their personal flaws were, or what drove them — nothing that they achieved for themselves and then in the name of woman has ever been matched!”

Ms. Ebersole, more gently: “They paved the way, and started before women had the vote.”

Patti LuPone, Christine Ebersole and Broadway’s Friendliest Feud