No you are wrong. Both Madara and Sasuke used preta path, which is one of the six paths, and chibaku tensei is apart of the Deva path. Plus it would make no sense for Madara not to be able to use the paths when Nagato could, considering that Nagato's rinnegan was actually Madara's rinnegan to begin with.
I don't know why people can't accept the following obvious fact: Madara and Sasuke don't use the paths very often simply because they are used to using their MS abilities (which generally get the job done with ease, especially perfect susanoo). In a nutshell, they have plenty of other effective abilities which they are way more experienced with (where as Nagato had very few jutsus outside of the rinnegan paths, so he pretty much banked on the rinnegan as his main arsenal).
