Furthermore the other attendees might not appreciate your attitude.
What networking is?
Networking is more than just shaking hands and collecting business cards.
It is about building relationships and being committed to help other business professionals.
It is about the quality of your contacts and not the amount of your contacts.
It is about consistency. The best is to belong to two or three groups, attend their events regularly, get to know the other members, and in exchange they will get to know you and trust you. When you see the same people over and over you develop a strong and relationship with them. The benefit of building relationships with a committed group of people will result in new leads for your business.