Bad behavior is contagious which will effect students in every American schools to follow and they will not value their education more than they should.  Teachers are suppose to be a role model to their students and if they can't do that, students won't recognize how important it is to take their education seriously.  They won't be able to learn because there is no positive influence that's given from the teacher and therefore, the bad attitude from the teacher is what the student will become. 

The careless attitude of a teacher will show students that learning is boring which will unmotivated them and causing them to question why they're attending school in the first place.  Careless teachers are passive and not passionate because they don't touch a child's mind and aren't influencing their students positively but abandoning them.  Passive teachers don't tend to teach actively and so they don't have the capability to build a foundation for students to succeed.

Teachers take advantage of students because they aren't in a class room to prove that education is key to every student's success in the future.  Apathetic teachers see students as their paycheck and so they don't fulfill their duty to teach and go over the objectives of certain subjects that students should be learning or reaching the criteria in which students are suppose to get out of a class.  And they tend to put students second because they only care about their salary and therefore, they don't see students as the future.