The company gave you plenty of opportunity to shine and prove yourself. However, there was no compensation. By the end of my career there, I was doing 3 different jobs and helping out on a multitude of projects for different engineers. I also was repairing the equipment we used. It did give me great confidence in my skills and I loved the work, but no matter how many extra things I did, I couldn't get any kind of reward or even acknowledgment. I got one half-hearted 'Thanks' while walking down the hallway and being passed for fixing a $100,000 machine and improving it's functions.
Most management at Industrial Scientific doesn't keep tabs on the people under them or help them. Most bosses would do things to get on their bosses good graces. I've only had supervisor there that really took the time and helped out everyone underneath him. The employees that build the instruments essentially run/train themselves.
My coworkers were amazing people. We all would look out for each other and help each other. Every once in a while, there's a guy that just doesn't care, but usually that means they aren't around for very long.