Technically we don't show the price of the payout (or potential payout) in steem... but this weird thing called STU which i think tries to be USD equivalent. In the best of all worlds it'd be nice to show the Steem Token estimation for their rewards. Then maybe translate to USD equivilent or EUR or whatever currency they like.
However the point at hand is that unless the amount can be consistently proven to always be consistently representative of USD then we are unlikely to put the $ back next to the amount.
If we can prove consistency with some sort of math that can even handle wild SBD variations then that's when we start considering putting the $ back on there... otherwise you can't tell a user it's $3 unless it's actually $3 (and consistently so)
If it's already consistent then I think we just need to see the proof ... however we're a little busy working on other things to do a full scale check into the present day results.