No, you are not doing wrong, but redistribute in this way is not common in EIGRP.
IGRP does not recognize 0.0.0.0/0 so if you redistribute static, IGRP does not redistribute default route; however, EIGRP does.
In IGRP, you need to use IP default-network to advertise default route.
Do the same thing as I did. Put auto-summary under EIGRP. Other routers will receive the Candidate route with the subnet of 24, but it causes two problems in your network.
1- EIGRP does not advertise classless subnets.
2- Receiving subnet of /24 may cause unreachable areas in your network.
Masoud
