That’s not how it works. Rewards are different and more valuable than cash back. For example I can spend $30,000 over 3 months on travel and dining, which is not out of the norm for someone with significant business travel. On a CSR that gets you 3 points per dollar spent, which is 90,000 UR points. You can do a 1:1 transfer to United MileagePlus, and then book a one way ticket in J to Sydney. Those tickets close in will often cost $9-10k in D/C/J, award availability is hard to come by but not impossible to find. You get great value when redeeming that way, that’s a neat 30% back on your purchase.