SAT and ACT; What's the Point?

All our lives we have heard about those two little acronyms that define your life. SAT and ACT.
They help us get into a good college, they help us get a good job. You need to have a really great score to succeed. Why? What's the point? Why base our entire lives around some test that only measures our intelligence? We have so much more to offer; creativity, raw skill, instinct, concern and kindness, strength, performance, and so many other things that cannot be measured.
The SAT and ACT puts our life on paper. Puts your whole worth in a single score. People are NOT worth a 770, they aren't worth a 1600. They are worth so much more than that.
Some people simply don't test well, or don't have the finances to take these test 3-5 times to get a better score. So we shouldn't limit them with a test that puts so much emphasis on a score of intelligence.
It's true that colleges look at other things like grade point average, community service, and involvement in different activities. But we all know the truth of their deciding factor. It's always mainly based on those SAT and ACT scores that matter so much to society. We know that someone can have a 1.0 GPA, no community service, and get a perfect score on the SAT and you will surely get into a good college.
Is that fair?
No. A student needs to work hard for four years and not just hope to get lucky on one test, and slack the rest of their High School years.
I'll admit it, colleges are often selfish. They want your amazing SAT scores so they can raise their school rankings and look better in front of everyone else. Many find hope in the fact that 800 Universities and Colleges in America are not requiring SAT and ACT scores, but instead making it optional. Even though some of these colleges may be honest in their motives of diversifying the student body, they are really just trying to get the best students to submit their scores, and then the lesser scores are not submitted, so that the overall SAT and ACT scores are raised immensely, and of course, their school looks so much better. It infuriates me that this is allowed to happen. They are lying to us all. Using their fancy laminated brochures and smiling professionals to trick us all.
So really, what's the point of SAT and ACT?
To boost a Universities popularity and to put the worth of someone in a single score that measures little of the important things that you will encounter in life. The SAT and ACT are a trick, a scam, and a well-hidden lie.