Mr. Gold is the guiltiest guy around, so he'll probably get sick pretty quickly. From his canon point, though he should be able to accept what happened and move on from it. But, he will be seeking out more sick people, so that, if they want, he can try to make a deal with them! Something so he can help heal them with some ill-gotten "cure" and then when it doesn't work... well, that's not his fault, right?
Mr. Gold plotting, too!
Mr. Gold is the guiltiest guy around, so he'll probably get sick pretty quickly. From his canon point, though he should be able to accept what happened and move on from it. But, he will be seeking out more sick people, so that, if they want, he can try to make a deal with them! Something so he can help heal them with some ill-gotten "cure" and then when it doesn't work... well, that's not his fault, right?