For those of you in a teaching career, do you find young and teenage students always appreciate your efforts?

If you are the kind of teacher who honestly wants the best for his or her students, is devoted, honest with them about their performance and willing to praise and boost morale when it comes to those who are not as strong as others. I believe a teacher should be diplomatically honest and not flatter and praise in a fake way where praise is not deserved.

Unfortunately, I notice many kids do not appreciate this approach and would rather be given high grades without deserving them, they don’t want clarification and explanation on anything. Their attitude on the whole is: “Just give us the grade, don’t focus on correcting us too much and let’s get it over and done with.”
Very few are those who can see through someone who cares and appreciate his or her efforts. It saddens me and when I spoke to some teachers who faced similar problems, they advised: ” Just give them what they want otherwise you will find yourself hated and unpopular.”
I find it sad that we have reached a point where in some cases students and their parents rule, especially if they are being taught in a private not public institution. Anyone agree with me or is teaching as rewarding as it once was.

P.S. I also notice a lot of plagiarism and great hostility when it is pointed out to them that this is not a way to help the learning process!

Am I overreacting?