Colleagues with big egos will most likely isolate his/her coworkers. That’s because pride is never justified as the basis for good leadership, being a good colleague or making a business decision.
Here's what is really important:
Maintain a sense of humor! Make a fun environment within the meetings you’re in (if you can). Because when you retire or leave that company, you won't be remembered for your phenomenal forecasting or authority, people will remember someone who brightened their days.
With that, I wanted to send good vibes your way and hope you can do the same for others!