The recent controversies, analysts say, underscore the cultural and strategic differences between Miss Universe's Thai and Mexican owners.
The pageant events are being organised by Mr Nawat, who is known to fans as the founder and owner of Miss Grand International, a smaller Thai-based contest that is known for its loud social media presence.
Mr Nawat holds the licence to host this year's Miss Universe pageant, while the Miss Universe Organization is being run out of Mexico by businessman Raul Rocha.
It is a relatively new leadership, brought in just before the pageant began.
Thai transgender media mogul Anne Jakrajutatip had previously owned the event, having acquired the pageant from US entertainment company Endeavor in 2022. She made sweeping changes towards inclusivity, allowing transgender women, married women and women with children to participate. She also scrapped the age cap for contestants.
As audiences declined over the years, she sought to monetise the Miss Universe brand, stamping it on merchandise such as bottled water and bags.
In 2023, her entertainment company JKN, filed for bankruptcy, citing "liquidity problems".
She resigned as CEO of JKN just before this year's pre-pageant events and was replaced by Guatemalan diplomat Mario Bucaro.