Think about it this way, everyone has their own opinion. No one is ever correct and no one is ever wrong. You might find someone doing something that seems wrong to you but in their perspective they might think it is right.
For example, you might say flogging children because of their mistakes is wrong because we should love our children but some people might think it is right because they think it can make their children learn by doing so. If a person rob a rich man to help a needy person, do you think he's right or wrong? It doesn't matter, you can say he's right because he helped the people in need or you can say he's wrong because he rob others. It's just the way how you look at it. There are many scientific theories, do you think they're all correct? They might be wrong, just that the reason for being wrong it not yet discovered or identified. If you think about it that way, you'll find that there are no fixed concepts of right or wrong.
Be yourself and ignore those that feels wrong to you and accept what is correct in your opinion, but remember, you can always hear what people think. Something you think is wrong might feel right after you understand why the other people think it's correct.