There is absolutely no benefit of going in multiple times if you are just going to lock out jobs.
If you lose the first fight but leave only a little bit remaining, it could be worth going a second time consecutively, provided you are prepared for the second job stint. Taking Mboze from like 10% on V15 is probably more appealing than doing the entire fight over again, especially if you only need the clear. I actually like that you CAN go multiple times, which makes it a little easier to pull off wins
Wouldn't that be ineffencent RP-wise though?
Taking your example, if your first run went from 100% to 10%, you would earn 176.4 (
source) and going from 10% to dead would only net you 215.6 RP (the remainder of 392 unearned from the first fight) vs. going the first run to 10% (still 176.4) and then going again and beating it fully (another 392 RP).
Sure, you are taking the risk of not beating it the 2nd time, but at least the risk is offset by the additional RP earned. And you would end up losing 235.2 RP if you didn't manage to beat it the 2nd time going from 100%.
I'm not saying you are wrong, but if you aren't trying for the clear all the time, and you will continue to get better and better each time. Getting RP is a ***.