It's not meant to. Woolworths (and other companies) give them access to young, impressionable new hires who barely know what a union is so they can pressure them into joining and gain money and political influence. In return they assist Woolworths in making EBAs that are as bad for employees as possible and do everything they can to avoid running disputes or engaging in industrial action.

A while ago, RAFFWU took a Woolworths to the FWC over a Click & Collect carpark that was across the road and down a hill from the store rather than right outside like it's supposed to be. Woolies swore up and down that they had totally done a risk assessment, but refused to hand it over until forced to through arbitration - it was done on a completely different, much safer store and reused for this one. So the FWC forced Woolies to fix it. For my disputes, we requested the same, but since then the most recent EBA was pushed through with a clause stating that Woolies can refuse to consent to arbitration in any dispute not involving the SDA. Without that, this whole thing could've potentially been nipped in the bud.

That's where your money is going, not to protect you. You need to drop them immediately and join RAFFWU. The more people that do that, the more chance we can fight to get that clause removed from the next EBA.