A series of sexual assault accusations has rocked the real-estate industry this year.iStock; Rebecca Zisser/BIProsecutors accused luxury real-estate agents Oren and Tal Alexander of sex trafficking this month.They are the latest in a series of top figures in real estate accused of sexual abuse or harassment.Some in the industry say its structure, partying, and cult of personality are all partly to blame.The Alexander brothers, luxury brokers who New York prosecutors accused of sex trafficking this month, are the latest in a series of top figures in real estate accused of sexual abuse or harassment.