Haskell showed that a monadic bind is a nice solution to chaining together IO operations once you have boxed them inside their own type and boxing IO operations

Haskell showed that a monadic bind is a nice solution to chaining together IO operations once you have boxed them inside their own type and boxing IO operations inside their own type was a nice solution to the issue arising from being lazy by default. Haskell was actually widely successful in showing that, no doubt about that.