You'll get your answer. Many salespeople will agree to go to lunch with you. Take a competitor to lunch or schedule a job interview with a rival company. Generally a leads club is an informal network of noncompeting salespeople who share information about customers they are calling on and selling to. By spending time with people who do what you do, you'll be able to have access to the information you seek.
Salespeople generally make a higher percentage of income through commissions or bonuses than salary.
However, it's important to be able to show your employer how much more you need by gaining information. Check local classified advertising to see if similar positions and their salary ranges are being advertised.