The church has welfare programs to help members and non-members that are need. I've personally recommended such food and rent assistance from the church at a point in my life. I've even had the church cover expenses for mental health counseling.
I've also personally witnessed and helped to deliver food and provide service to those in need. Sometimes people in need receive in aid more than they tithe.
There's also a huge social network of people helping each other out not directly related to church funds.
There is also the Helping Hands program that provides labor and food and other support when there are natural disasters all over the world, including some big ones here in the US.
This is not a situation that's all take and no give. Not only does the church provide a lot of welfare support, but actively encourages members to be Christ-like and serve everyone in need.