Blockchain technology has an enormous potential in rewards: if you mint a custom crypto token to represent a ‘level of loyalty’, you can incentivize the customers with it.
Apart from just been saved (and spent) from the mobile crypto-wallets, the possibilities are much wider: you can use it to track a progress in something, use it for voting, decision making, to support or mentor certain activities.
In fact, you can frame it as ‘been a part of a team’, or a community, so that people can see and track the (positive) impact they do.