I only have a vague idea what my college, let alone high school GPA, tallied. The only time I was ever asked was on the grad school application. It was on the low side, but faculty still voted to accept me into the program. I was on TE more than once as an udergrad and took the friggin chemisty classes more than once...
Today, have a rock star job compared to my classmates that had substantially higher GPAs. Why? - IMO it boils down to communication and people skills.
I've had to fire one person who had phenomenal GPA undergrad through Ph.D. But, I've seen frogs interact in a team atmosphere better than she did. That bad hire rocked my staff to the core and I had to remove the tumor before I lost the good people
When I hire today, I look for people skills, good communication, initiative/self motivation and technical proficiencies. There has to be some kind of happen medium among those abilities - or expect big trouble.
Here's a few hints when out looking for a job -
1) If you send me a resume with typos or grammar errors, I round file it pronto.
2) If you show up at the interview unprepared or looking like you couldn't afford to do laundry the last month, you're toast.
3) If you ask during the interview, "Are you serious about this 40-hr week thing? You cut everyone slack, right?" the interview will be over before the last word is out of your mouth.
4) Cut the hair and remove all the weird piercings. It's your right to express yourself however you want, but my employer cannot be represented by people that look like they just made bail a couple hours ago.
You may think I'm making those up, but I wouldn't have believed 'em if I did see 'em.
GPA worries? - You're better off graduating from an accredited program, do well enough to have one of your instructors be a reference, have some kind of work experience even if it's delivering papers or flipping burgers, present yourself well and use common sense.
That's my 2-cents worth.