A question for Christians?

It would seem that Jesus made it very clear that Christians should not be wealthy - 'blessed are the poor'... 'woe to you who are rich' ....'it is hard for a rich man to enter the kingdom of heaven' etc. I was wondering how Christians who have expensive holidays, nice cars, luxury homes, children who have 'everything' justify it all in the light of the suffering in the world. Suffering that could be alleviated by individuals doing what Jesus told them to do, not just sending 50 quid off to Comic Relief to make them feel better.