What's so strange about this? In many cities, it is very common for insurance companies to have enough team managers or regional managers with an annual salary of tens of millions. Ping An's bosses don't get the highest annual salary. There are enough teams and agents with sufficient performance to exceed the annual salary of these bosses every minute. As long as the insurance company has a large team of more than 1000 people, it is normal to have a monthly salary of over one million.
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.