Vampire and Multi Leval Marketing

What will happen when everyone on earth become vampire? And what if everyone on earth become direct seller?

Vampire is a kind of very strange creature. They was human but tranformed into vampire after their blood get suck by the other vampire. The sucker will become the master and the victim will become the slave. Eventually, a huge hierarchy system was created.

Vampire need human's blood to survive and yet they convert their food into one of them. From another prespective, they are killing themselve because they are decreasing resources and yet adding competitors among themselve. Unfortunately, a vampire cannot suck the other vampire blood to survive.

The above is a brief about vampire. I was watching hong kong drama series: "I got a date with vampire" sesson 1 and 2 in my graduate holiday. The movie make me relate the vampire living pattern with the direct seller and multi leval marketer (MLM). I found a few similarities from these 2 very opposite things.

Vampire and MLM both work in hierarchy system.
Vampire and MLM both compete for limited resources.
Vampire and MLM both creating comptitor to themselve.

At last, I ask my self: What will happen when everyone on earth transform into vampire?

ALL OF THEM WILL RUN OUT OF FOOD and eventually die together.

Some of you might say, money and human is difference as human will still reproduce themselve for the next generation. That is why vampire have plan and harvest their resources carefully, for example: preserve the survive of some villages to enable reproduce.

I have no answer for this. Sometime i think that human and money works almost the same way as more natural resources will be harvested and eventually transform into money. But the question is, if everyone doing MLM, who do the job to harvest these resources?

People that wanted to start their own business joined MLM, thinking they have escaping from the loop of employee-employer working system; unrealised, they are at the same time falling into another loop of "vampire like" system. Isn't it sad?