Based on the information provided, it appears that ISTJ and ISTP personality types are most likely to be workaholics and prioritize their careers above all else. ISTJs value a quiet and structured environment with clear rules and regulations, which can lead them to excel in careers such as accounting, military officer, police officer, administrator, auditor, and medical doctor. ISTPs, on the other hand, prefer to work independently and enjoy solving complex problems that require precision and creativity, making them well-suited for careers such as programming, software engineering, architecture, and college professor.
It's worth noting that these are generalizations and not all individuals of these personality types will fit this description. Additionally, there are many other factors that can influence a person's work ethic and career choices, such as upbringing, personal values, and life experiences. The MBTI can provide valuable insights into a person's personality, but it should not be used as the sole determinant of a person's career path or work ethic.