OP's groups of villains:
-They are always together just for common interests. They never have good dynamics,bonds or lives outside of opposing the good guys,and their interactions are always fighting over petty things,showing how they don't have good teamwork,and mocking each other for they failures.
Robin and Crocodile were literally using each other. Vivi and her subordinate were infiltrated in Baroque Works.
Aokiji has a hidden purpose to be with Teach. There is high speculation of his true reasons and whether or not he will betray Teach at some point.
Aokiji became a pirate due to conflict of interest between him and Akainu. I'm not sure but I guess only then or during the timeskip the sword organization was created (the not so secret marine organization).
Fujitora has his unique values that he puts over his military duties.
Big Mom Pirates are a family that fears their mom/grandma and some are perfectly fine with betraying her, escaping from her tiranny or even plan to kill her.
Beats pirates are OK with fighting each other for positions of power inside the organization and some of them are only there because they got their wills break by Kaido.
Gin was extreme conflicted with his captain decisions but still followed his orders no matter what. And still sacrificed himself to save Sanji.
Some villain groups are pretty good in One Piece.