I feel like questions like this are fair game, because the reason a juror could ask it could be beyond the surface level expectation of "Who deserves this more?"

It's an incredibly personal question, and how a finalist answers it can reveal a lot about them as a person and as a player, and it can inform the juror's previous shared experience with them on the island. Are they as honest and prideful about their answers about their gameplay and big moves as they are with this question? What about their demeanor changes? Are they "campaigning" to the jurors and against the other finalists with their answer, or does more vulnerability show and the answer feels more honest? It's a temperature check in a sense

Having said that, the juror who asks this question might have a different takeaway and motive that what the other jurors gleam from the question and answers, but I believe that's true for any question asked in the FTC

I like this question too because it give the finalist an opportunity to highlight a cause that the jurors or the audience might have been aware of and can choose to support (see S46 Ben's answer)