Short answer: Both brother! 1 stone, 2 birds!
Long answer: Thats the point of the rank… sure time only flows forward (and speed of light travel hasnt been invented yet so we dont need to worry about relativistic time dilation) meaning we can only rise in rank if people at the top fall… this is why all we can really do is never relapse and see our daycounts grow and grow! This way we will always have our ranks (granted no one above us relapses and if they do, our rank rises)!
The way I have addes people is based on daycount so you never need to move your details/rank up… but… if you relapse… when you turn that day count to 0, move your rank… all the way to the bottom by yourself (I think this is a just/fair thing to do) and dont forget to comment why you relapsed!!!