The development of social enterprise (SE) in Taiwan seems to be impeded by some contextual factors such as “managerial contradictions”, “lack of economic management talents”, and “inconsiderate decrees.” These barriers motivate the study to explore a better developing type of SE in Taiwan. The study selected several enterprises in Taiwan and Japan as cases to analyze the common traits of “SE” and the “business ethics” of profit-seeking enterprises by conducting the methods of in-depth interviewing and secondary data collection. The results showed that corporate responsible persons of the cases did not entirely consider their enterprises as SE though they all stressed that only corporate profits can enlarge the contribution to social welfare. All of these cases also achieved the social goals of “social care” and “social problem solving from some perspective” to a certain extent. What the study intends to expound is that profit-seeking enterprises can more effectively achieve social goals such as social welfare if they strengthen the function of “business ethics operation” and mold a higher level of “business ethics culture.” From this perspective, the study managerially implies that profit-seeking enterprises can effectively implement social welfare by exercising existing resources under the framework of “business ethics”; then this perhaps also develops a functional “contingency type of SE.”