I don't think Trump is taking any pay in his second term as well, so there is little incentive for him.
Yeah, he's like the guy who gets a job as a security guard at Fort Knox, but from a sense of noble civic duty, refuses to take a paycheck.
"The gold? No, it's all perfectly safe with me in charge. I can't show you
right now, of course, for security reasons. The photograph of a big pile of gold in my garage? Well, obviously I took it there briefly, for, er, cleaning. Yes, I noticed it was getting very dusty. So I selflessly cleaned it on my own time and at my own home, to save the public any expense".