be a victim of your own success idiom
因成功而反受其害
to have problems because of your success
The school has become a victim of its own success, as parents with children who have special needs now actively seek it out. 这所学校已经为其成功所累，因为那些需要特殊教育的孩子的家长现在会想方设法向他们寻求帮助。