Even in the US that can be a significant number. $50 a week is $200 a month. That, if used effectively, is a significant number to add to a debt retirement plan. Or beginning a wealth building plan. Or even just adding it to the grocery budget, it's nothing to sneeze at.
Personally, since I have no debt and I'm on a mission to gain SP, everything I gain gets powered up. I'm hoping for the long game play. Applied to SP, it's nothing to sneeze at there either.
So while it may not be as life changing in Western countries as it can be in others, if used with wisdom, it can still be life changing. :)