This is already explained ZKK boy. In the exact same page they talk about Marine Hunting at the beginning, which you can't read that unfortunately.
If we just look at the middle panels for the reasons of their bounty and not anything else,
then Crocodile gets no extra bounty for Marine Hunting and gets no extra bounty for being a subordinate of a Yonko, which Oda himself directly said in SBS being a subordinate to a Yonko captain boosts the underling bounties. Not the other way around.
According to you, Crocodile gets no extra for Marine Hunting, gets no extra bounty for joining Cross Guild. Because all they said logia, intelligence and leadership.
Is Mihawk not intelligent so he is dumb? Or that Crocodile is such a big genius that we didn't know so far.
To say that Croco gets extra for being intelligent but Mihawk does not means that, so Mihawk is dumb.
Then again, if Crocodile gets extra only for being intelligent and for leadership abilities, why Buggy doesn't get bigger bounty than Mihawk? Why its bigger than Crocodile's bounty only? And not only that, Buggy's bounty is bigger than another Yonko with 3 billion, and BB's first Yonko bounty 2.2 biliion.
Buggy either has BIGGER power, Intelligence and Leadership abilities than Crocodile according to the Marines, which is why they say Buggy has the power to control both Mihawk + Crocodile, or Buggy controls Mihawk + Crocodile with only sheer power, and so he gets 3.1 billion? But not bigger than Mihawk's 3.5 billion?
Buggy literally can control Mihawk's 3.5 billion power, + Crocodile's 1.9 billion power (which Mihawk can't control Crocodile) but somehow gets lower than Mihawk's 3.5 billion despite controlling that 3.5 billion power?
So which one ZKKwanker? How come Buggy doesn't get extra over Mihawk, doesn't get extra over Shanks, when they specifically say Buggy is superior than 3.5 b Mihawk + 1.9 b Crocodile combined?
Its obvious that both Crocodile and Mihawk got extra for joining Cross Guild, for being underling to Yonko, and for Marine Hunting. Its that simple.
Your argument is invalid because you completely ignore Crocodile's Marine Hunting and Cross Guild boosts, and completely ignoring how come the guy they said stronger than Mihawk, gets lower bounty than Mihawk.
Its obvious Mihawk's bounty gets boosted for being subordinate to a Yonko, same as Crocodile's, as well as for Marine Hunting which he mentioned at the beginning of that page you posted.