My question is that in every society we sees people who give ayats and hadith when mistake of other but when it come to their own, they defend by telling that its a human error. They talk a lot about live simple and down to earth life but their ego hurts in every small matter . what does islam says about those type of people. is there anything mentioned for those people in Quran and Hadith.??

Such people are using Islam for their own benefit.
They are not representing Islam.