Brother Dishdash, you should rephrase your question because there is no such thing as an 'eligible' rape.

As for the hijab yes indeed it is for protection. Allah(swt) had directed ALL muslim women to dress modestly to protect her from the evils lurking around.

In Islam, there is a reason for everything. Any muslim woman you see out there is no wearing hijab for her own health, but rather for protection.

At the same time, it is the man's fault if he decides to rape a women. Rape is a crime period. Whoever has commited the crime, has commited the sin..it is not a matter of women don't cover up or not.

Men do their jobs by lowering the gaze and dressing modestly.
Women do their jobs by lowering the gaze and dressing modestly.

period.