Is teaching English a Real career?

Teaching English IS a real career, which is NOT LESS important, LESS noble or LESS challenging than any other subjects. And I'm obliged to point out that most Chinese primary and secondary schools, sometimes even universities, are fraught with unqualified international teachers from all English-speaking countries. They are irresponsible to their students and do awfully bad job in teachings. They are hired simply because they are foreigners. English teachers as they are, many of them are not indeed good English speakers. By good English speakers, I mean the people who have received university education and understand all the theories on foreign language acquisition. However, most of them, before they lecture the students, have never been teachers themselves, so that they arrange their courses according to their personal likes and dislikes rather than the need of the students. They follow not the educational curriculum. Given that I should concede strict adherence to the curriculum may not necessarily yields satisfactory results, it, at the very least, guarantee the students would not suffer from the badly planned teaching plans. To sum up, I do hope those who are not really earnest to put teaching English as a serious profession would leave the students alone.