When a man has money, access and temptation is heightened. You have more access to the women of your dreams.
Often times, when men get married at a low financial level, it's not the woman of their dreams or the woman they truly want. It is the woman they can obtain circumstantially.
This isn't 100% true because nothing is absolute, but life has shown us that it is rare that men stay with the first wife or first baby momma once they level up.
Men don't cheat just because they feel like it, they cheat because they are lacking emotional and sexual support from their wife or partner.
This within itself makes the idea of a man being with one woman nearly impossible.
Now, Shannon Sharpe has an immense level of money, status, and access. Gabriella Zuninga is an Only Fans model who is into, ironically, choking and anal sex.
When you factor in his financial circumstances, it is highly unlikely he will remain "exclusive" with one woman.
Money and access also allows you to enter different sexual kink rooms as well (bandage, group sex, exhibitionism, voyeurism, impact play, etc.)