I actually found the portrayal of Paul in the Villeneuve films to be closer to what Frank Herbert described as his intent in interviews when compared to the book.

That is, sincere with terrible consequences for bystanders. Not bad per se, but not conducive to the common good.

I also felt that the books undermined the warnings of tyranny by leaning on prescience to provide an ends justify the means argument. Moreso with God Emperor where the Golden Path seemed to be the ultimate end justifying any act.