+rep that's correct except for the relation to Naruto and Lee.
Naruto and Lee weren't expected to amount to anything like Hinata was. They were the shunned characters of their situation yet they amounted to something beyond what they were expected to. If anything, you relate them more to Neji then to Hinata. Even though Naruto and Lee's gain was more through their trainning, while Neji's was innate (so to speak), all three of those shinobi rose above what was expected of them and astonished those around them.
Hinata's the opposite, like you said. She was born, believed by many to become one of the best, while she just couldn't meet the extrodinary standards held by her father.
What I did notice however, was during the filler (even though it's a filler you could look beyond that to see clues about characters) where the Hyuuga assembly was called, every Hyuuga reacted with confusion as to why Neji, a branch member, was placed in charge of the clan instead of the rightful heiress Hinata. That adds to the argument of her being held to a higher standard, but it also shows that most of the clan wasn't really paying attention to her much and the ridicule she recieved was really only from her father. Everybody just assumed that Hinata was the heiress and was at that level but she wasn't and when Neji was placed in charge the clan was like wtf.