Barcelona had a fantastic 2024-25 season, although it would've been even better if they won the Champions League (they were the favourite).
Real suffered a bit of humiliation, especially considering they lost all direct games against Barcelona (El Clásico), but they still have a chance to salvage their reputation and make their fans happy by either winning the FIFA Club World Cup or, at the very least, achieving semi-finals or the final.
The prestige and the prize pool of FIFA CWC is similar to those of the Champions League. I believe the total prize pot is around $1 billion, so not something to be ignored.