If you touch a person thigh that has genital herpes and then you go and go wash your hands with dish soap 4x will you be protected?

No risk. You can catch another person's genital herpes ONLY by intercourse or other direct sexual contact (oral sex, genital contact without penetration, etc). The virus is not transmitted by hand-genital contact, and certainly not by contact with non-genital areas like the thighs or anywhere else. Dish soap would kill the virus, but there would be no risk even if you didn't wash.