This will slow you down incredibly. Instead of ignoring your seniors/peers, QUESTION their "authoritative" commands. You will learn much, MUCH more that way.
It also might put them in their place if they are massive egoists. Never feed the ego.
I would like to point out that I never suggested that one should ignore their seniors and especially not their peers. I merely suggested that seniority only buys a person so much respect. It's important not to exceed that quota.
I'm a junior developer and I've found that the old guys lack creativity, but they make up for it with experience. The people who have been programming for 20 years have seen languages/frameworks/libraries come and go, they know what good code looks like and what's just trendy. The more you ask them why they're making decisions you think are retarded the better you'll get at programming.