For me, I don't think that we should look at and judge other peoples wealth - that's not our place, it belongs to God.
Each of us is responsible for our own giving and our own relationship with God. He's given us guidelines within the Bible and it's up to us if we follow them, but someday we will have to account for all we've done and how we've used the resources which He's made available for us.
I don't have much in the way of financial wealth, in fact just knowing that the bills can be paid is about as far as it gets, however I still believe that it should be a pleasure to give back to God what he's asked of us.
If you go to some of the poorest areas in the world the people DANCE and SING and LAUGH as they give their offerings to God. We, in our western culture have made it a really miserable occassion! It's like the more we have the less joy we have in giving.
So next time we put some money in the offering at church, praise God that we have been given enough so that we can give something back to Him and LAUGH with the joy that giving brings.