No, but his peers will reject him if they think he is a swot, with lofty edcuational aspirations, which is very tough for boys like him. Peer pressure is by far the biggest influence on teenagers, which is why so many parents are desperate to keep their children out of what they perceive to be bad schools full of children from low-achieving families.
I didn't suggest he should change who he is, but he will be judged by his peers if they think he's showing signs of being 'too good' for them, and climbing out of his box! Many kids from WC or disadvantaged backgrounds are extremely scathing of intelligence and academic achievement. It's a defence mechanism against their own inferiority complexes.
Besides, what kind of teachers are you mixing with if you think they will make rash judgement on him? Most teachers I know (and I know many) love nothing more than to find a real rough diamond, and to mentor them and encourage them, and see them flourish! Far more rewarding, methinks than a constant stream of tutored Stepford Children just going through the motions.
Of course if he behaves like a nightmare, then you can't blame them. they can only have so much patience, no matter how much potential he might show.