MEN OF GOD:Is it wrong to correct preachers, prophets or pastors?

I have come across alot of preachers, pastors and prophets, and most times i see error these people make,


i see how they go about deceiving the public just to raise money, and my question is, is it wrong to correct them? I can give you examples of what these people do, they have turn the bible to favour their selfish desire,the most annoying ones are the ones that enters a bus and start preaching, they usually assume they are now God, any other thing you do that is not in line with what they are saying, they will be quick to tell you how you will perish, or die, example is if they ask everyone to touch their neigbour and say " neigbour  you shall not die," if you fail to do it, you become devils agent, if they are preaching and you r on ear peice, you have become devil agent and they will tell you how one boy who felt too big when they were preaching was crushed to death while he wanted to leave the bus, and so many weird stuffs like that, there are also these ones that special in giving prophesies, claiming God told them to tell you, one was praying one day and i was not following loud like other people, he stopped and said to me that God said that i am not strong in prayer, that i should be strong in prayer, lol, i didnot ot want to quarrel or argue so I let it be, please you van drop your experience here for review, my question is what if i counter the preacher? Then you will see, comments like, dont judge so that you will not be judged, but if you look at it very well, you will see that it was the preacher who actually judged you first, by telling you, devil is using you, by plugging ear piece in your ear while he or she is preaching, without knowing if you are listening to word of God from your pastors mp3 messages, whether it is a worship song you choose to listen to because you are fasting, they just tag you evil etc. There teaching always end with bring money to support work of God, and how if you dont give, this week wont be good for you. please, tell us your view  and experience and what the BIble said on this issue, thanks and God bless.