Equations

Just for laughs!
Looks funny but somehow quite true in some sense, haha...

Human = eat + sleep + work + enjoy
Pigs = eat + sleep

Hence,

Human = Pigs + work + enjoy

Then If,

Human - enjoy = Pigs + work

In other words,
Human that don't know enjoy = pigs that work

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Now Let's say if
Men = eat + sleep + earn money
Pigs = eat + sleep

Hence,

Men = Pigs + earn money

Then If

Men - earn money = Pigs

In other words,
Men that don't earn money = Pigs

=============================================

Women = eat + sleep + spend
Pigs = eat + sleep

Hence,

Women = Pigs + spend

Then If,

Women - spend = Pigs

In other words,
Women that don't spend = Pigs

=============================================

Summary :

Men earn money not to let women become pigs!
Women spend not to let men become pigs!

Men + Women = 2 Pigs