Candle wax will melt off in super hot soapy water. While the suede is wet you should avoid heavy brushing and focus more on dabbing with a clean cloth to remove the wax.
Did you end up with 'fullers earth' when you cleaned that pizza stain? (I seem to remember that episode)
They are good shoes. And will even look good in a more rugged state if that is how they end up. So personally I'd not give up on them.
May I presume the candle is in a 'safe place' now?