Even though there are a hundred reasons to justify the fading of the "halo" of the profession, there are even 10,000 reasons that this profession cannot step on the bottom line. Abandoning the bottom line, whether it is moving out of economic reasons for survival, or blaming the lack of conscience on the system Restraint, blame everything on the external environment, is harm to professional ethics. The text is intended to explain:. ['Institutional constraints are the main cause of professional ethics.', 'Impaired institutional ethics generally stems from the fading of professional "halos".', 'Never break the bottom line of professional ethics.', 'Those who abandon the bottom line will always make excuses for themselves.']