The 41-year-old scored a stoppage victory over Manuel Chaar in Moscow on Saturday after opening a deep cut above Chaar's eye in the fourth round.
Haye told Sky Sports News that Vitali should be aiming far higher with his last fight before pursuing a career in politics, and the Bermondsey boy thinks that he can fit the bill.
He said: "I want to convince him that he hasn't had a defining fight yet. His biggest fight to date was against Lennox Lewis, which he lost.
"Although he's had a long string of victories, none of them have been against opponents that have brought any excitement, any entertainment.
"Saturday night was against an opponent I'd never heard of - there was no headline, no hype. For someone who wants to retire, you want to retire on a big fight."
Haye dominated domestic rival Dereck Chisora with a brutal knockout victory at Upton Park in July to send a warning to Vitali Klitschko, who was taken the full 12 rounds by the same opponent.