Language Inflation

As time goes by various words and phrases apparently lose their punch. People cease to appreciate them, desiring to describe something that has grown, become bigger, grander, more intense than that which had existed to date. Two simple examples should suffice.
Jesus told in the parable of "The Widow's Mite"(Matt 12:13-17) about a woman who had contributed her entire resources to alms for the poor. And He declared that what she had done was unmatched because she "gave all". At that time "all" was sufficient. He had no need to declare she had given "110%".
Up until very recent years we would be warned of the potential for contagious illness spreading by being told of flu epidemics. And we understood that this was bigger than the possibly small, contained situation wherein one might catch an illness from immediate family members. This meant that schools and churches and the marketplace could harbor carriers of whatever contagious bug was out there.
But a mere epidemic is not grand enough to categorize Swine Flu (oh wait, we do injustice to poor pigs calling it that). The H1N1 virus is not just of epidemic proportions. No! We must crown it a Pandemic for surely none of our ancestors have seen anything matching its ferocity and reach. [And yes, I get that worldwide travel perhaps render this a technically correct differentiation.] But it still seems to me that many of the historic epidemics we're read about were more ferocious than our latest pandemic ever thought of being. This just ain't what I had envisioned for a pandemic back when I was studying epidemics. Where's the boils, spitting up blood, etc??
Returning to the "110%" nonsense, one fears that this type of playing fast and loose with our vocabulary is not just silly. It confuses many people who probably don't really need to be confused. If we blow away the concept of "giving your all", then what are the bounds? How is ALL not significantly superior to 110 or 120 or 200%? If we don't have a maximum value (such as "ALL") then where's the top? My giving 110% effort can easily be topped by somebody. All they have to do is give 125%. Where can it end?
This whole concept is, of course , not significantly different from the tendency in recent decades for "grade inflation" in schools. But I grow weary and don't wish to tackle it tonight.