I would not do it for $50 because it’s worth way more than that.
I’d also not do it because it’s just another dataset about my life that can be exploited to my detriment on a personal level.
However, I think there’s an ethical dilemma if you begin to sell health data. For example, the type of people who are going to be willing to sell their health data are probably going to be poor people who are desperate for money. They’re probably not going to be thinking about the wider implications of selling that data. Rather they will driven by trying to solve the immediate need in their life (the need for more money).
So monetising health data makes vulnerable people more vulnerable to exploitation as well. Corporations that would want access to health information are probably not as altruistic as you’d like to pretend. They are businesses who will look for opportunities to make money. The easiest people to exploit for the purposes of boosting profits are poor and low-middle class people. The same people who would sell their healthcare data in a moment if it solve an immediate need today.
Additionally, I think it puts people at risk of having their privacy breached with their sensitive information at a high risk. Say for example, you were a woman that had accidentally become pregnant at some stage and didn’t want the baby, so secretly had an abortion without your partners knowledge… if you sell your health data, in some cases you’re selling all your deepest darkest secrets.