The issue of 'identity' in engineering is an interesting one. Individuals have at least two identities in their lives (and generally many more) – their personal identity, and their professional identity.
Somebody’s personal, or social, identity is how they present themselves to their family and friends; their professional identity is how they behave whilst at work.
When these two identities align, there will be no barrier caused by identity misalignment to the individual happily pursuing their chosen profession. So, for example, it is so traditional for men (in the UK) to become engineers that in the social context their family and peer group are very accepting of a career in engineering as a good fit with their personal identity. In other words, this is the norm, and can even be seen as a ‘default’ career choice by a man's friends and family.