How you are perceived is both a reflection of your brand and the brands of those with whom you surround yourself.
Hmmm... sounds like advice our moms gave us years ago, doesn't it?
The difference is in the intent. Ages ago the subtext was "only surround yourself with successful people." With a broader definition of success and joy in a diverse network, today the reminder is to "be mindful of how you share your brand and be respectful of how your association reflects on others." Less about surface and more about character.
My arts and not-for-profit background is positions my technical associates as forward thinkers as much as it showcases my own ability to apply knowledge across industries. We are greater than the sum of our parts - which is why networks and communities can do much more in the aggregate. Another positive check mark for having networks.
More than how my personal network (with me at the centre) is built, is honouring the trust given when someone else shares their network and their brand. Simple manners like 'ask before assuming it's ok to provide an introduction' or 'offer a heads up when information may impact someone' can go a long way to building further trust.
Your brand is more than your job - your network should reach beyond your own skills. Share across industries. Collaborate in many communities. Growing your connections with an authentic approach around who you are and what you offer can see everyone's perception of the participants deepen.
Success isn't skin deep - it's a whole community's reflection of us all.