Through part of my work I often deal with women similar to how you describe. I can think of one with a 'perfect' life, 4 beautiful overachieving kids, massive house with a pool, tennis court, stables, nannies, housekeeper, gardeners. Husband who is devilishly handsome and the ultimate provider, has her dripping in jewelry after every work trip. Second home abroad.
Honestly I've always dreaded her appointments due to my own jealousy.
Until one appointment, we were discussing a city break destination that I was going to with a few friends and she was telling me where to visit. She was amazed my OH was happy for me to go away for 2 nights, she confided in me that her DH didn't like her to go anywhere with friends, he had control of all their finances and she had to text him for permission before every purchase. He would monitor her movements with a tracker app on her phone as well.
She's told me she won't ever leave him, despite being massively unhappy and knowing his behaviour is abusive. He's threatened to pull the children out of private school if she does and made it clear she won't get a penny of his money or the house as it's all hidden.
You never know what's going off behind closed doors. The idea I was jealous of her because of her material possessions seems ridiculous now.