I would class myself as a successful woman, in business and within my personal achievements. Why or should that make a man feel insecure, I would suggest that the insecurity would be as a result of self insight. I can consider that another being successful may result in an air of superiority, but only if that is recognised as such by another, or it would remain merely as a status of funding and position.
Insecurity to my mind would not be gender specific although males tend to be raised to societal pressure as the ‘breadwinner and head of the family’ attitude. Yet should they feel insecure of another’s success, insecure or devalued, this would be dependent on the perspective of the individual. I know of men that are envious of a women’s success also of women that envy a man’s.
Therefore within my own relationship, he is not at all concerned with my financial prowess nor my business accruements. He is able to share my success with me and this benefits both of us and strengthens our dynamic. I totally respect him for this. Therefore I would consider, it’s the perception of the onlooker that determines the security of the individual, not the gender