Mistress Gaia did not think that it was ok for her to use her vacation cash when she had this loser to pay it for her. She wanted to put her money on stocks so that she could use his. And that is exactly what she did as she turned him into a findom slave and she had to get the money from him. He had no choice but to do it.
Mistress Gaia was bored and she wanted to have a little fun. To cure her boredom, she chose to use her money fetish. She wanted to entertain herself but even in that, she wanted to make money. That is why she made sure that in as much as she used her hot body to tease him and control him, she had to make money from him and she did. It was good money.