Having been in a variety of companies and positions, I've observed that it varies quite significantly -- more between roles than between firms. Some of what I've observed has been quite disgusting, and frustrating when the slackers get in your way.
You'll have to decide your own career path through this, weighing the situations you actually encounter. I'd recommend using spare capacity to educate and train yourself further -- in things that interest you and appear to have a future, not necessarily their crufty, anti-pattern systems. If your employer ends up actually using your talents, they win (and hopefully you do, too -- but beware). If they don't, you're in a better position to move onto something better.
P.S. While you're there, be open to learning about what other people do. And when you encounter someone you really do respect, cultivate a good working relationship with them. This shouldn't be forced nor manipulative; you'll actually enjoy working with them, and if you have genuine interest and some ability, they'll probably enjoy working with you as well.
You may have just found a mentor.
These days, it can be increasingly hard to make a ("Big Co.") career out of such -- the layoffs and inanities are just too great. But maybe, and maybe it will lead to work that's genuinely interesting. And when you're in a bind, you'll have some resources to reach out to and some people who have an interest in watching your back.
Countless times, I've been able to get "the impossible" done because I can pick up a phone or send an email to the effective (sometimes regardless of formal management) point of control. They already know me and that I know my shit and don't BS. Maybe also I've done them some favors, in the past. So, if they can do what I'm asking, it's done.
(Regarding the last part, sometimes its helpful -- necessary -- to know when to keep your mouth shut, afterward.)