One suspected reason the S.S. Eastland capsized with 2500 passengers (844 were killed), was instability due to lifeboats and rafts being added after the Titanic sinking caused a safety rule change.
Fwiw I have never understood why there is such a romantic focus on the Titanic when there were ship sinkings with much higher loss of life. Maybe it was all the rich people aboard the titanic ? The marketing baravado of an "unsinkable ship" ?
Don Paz = 4400 dead
Gustloff = 9000 died