what basis exactly do you have for saying they have "increased heavily"?
And if it has increased in recent years, its because funding bodies are having their budgets slashed by cash-strapped governments. No-one goes into a career in science - I mean pure science, not developing the next big wonderdrug for GSK - in order to earn megabucks. It just ain't gonna happen. And with so many researchers working on so many different research programmes, and massive layers of bureaucracy and paperwork between the guy in the lab and the grant money he needs to carry on his work, it's no wonder a lot of time is spent chasing grants. It's not because of greedy scientists with $$$ in their eyes, if that's what you (CL) are implying.
As padraig says, it gets more complicated in areas of science that have strong links to the private sector. But if you want to critique this, it should be in terms of a discussion about the ethics of using public money to fund research that benefits big business, or whatever - it has nothing to do with deep issues of the scientific method, lawyer-ish arguments about the meaning of the word "meaning", and all that jazz.