Oscar Wilde's Salome is an interesting character. She isn't helpless in the same way as other versions, but a victim to her own lust, in the same way as Herod is portrayed. She uses Herod objectifying her to objectify John the Baptist. She does anything to finally be able to kiss him - or abuse him. This version is more about Salome's lust and will than Herod's lust and Herodias will. In this version it's Salome that wants John the Baptist's head. Since she can't master him in life, it has to be in death. There's no silver platter. Like a brutish conqueror, Salome takes hold of his severed head and kisses it. In this way, Salome's part isn't passive, but active, complicated, vengeful and ruthless. However, in the end, one might speculate about who is the most powerful character.
Oscar Wilde's prose isn't as rich and full of wit as it usually is. Whether it is a deliberate choice or not is unclear, but Salome shouldn't be about the prose. It's a simple tale with many complicated themes and way of interpretations.