What is the point of this? I understand that the person who gets all six salaries first will be able to use that money for a while, so it turns out to be an interest-free loan. But for the one who receives their salaries last, they are simply giving their money for someone else to use without any interest. I see no sense in this and I would definitely never take part in something like that. If you know how to manage money and know where to invest it, it is much better to set aside a certain amount every month and let that money work for you and bring you profit.
It may not make sense to you but it makes sense to some people. I have posted before that it is common in my country, although not as a lottery but some people still prefer to write numbers on a small paper, fold it and tell people to chose, which is used to know when each person will receive their money but not all the time as this can easily be discussed in a meeting. Some people prefer to collect last voluntarily while some people will prefer first or second.
You can even see one on Nigeria local board:
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