That doesn’t go for the people using the math. When politicians and big business begin using math to come up with claims or to help boost their bottom line, the truth in math loses its meaning. Math doesn’t lie, but people do. When you see a poll by a particular company or even charity, you can bet that the numbers have been massaged in their favors.
How can two opposite sides of an argument have two different studies that show completely different results? One just happens to be favor of one side and the other study in favor of the other. One problem cannot have two different mathematical answers unless some numbers weren’t included or different numbers were added.
When you start doing this, then you can come up with any results you want. Theses causes math to lose its purity because math isn’t being used to manipulate numbers, but numbers are being used to manipulate math. If you ask any mathematician why he likes math, he’ll say it’s because math is pure. The equations are complex, but the principal is simple.