Not really the same. Leonard was an All Pro meaning one of the very best in the league. Danny was pretty great for a few years and the Pacers did pay him very well. He was never thought of as one of the 2-3 best in the league, at least I don't remember it that way.
His market value doesn't command that. The 20 Million+ guys are all edge rushers who are the most important players on defense.
Leonard is a 4-3 Outside LB If you narrow the contracts down to 4-3 OLB's the market tops out at 13.5.
He can certainly set the market here but let's be honest he's not in a high value position on defense. When all is said and done there is a good chance that Turay gets paid more than Leonard even though Turay isn't a pro-bowler.