This is an incorrect mindset, and frankly, it is illogical. The fact that I can earn $30+ per hour doing some jobs doesn't mean I should inherently expect $30+ per hour to do everything. Why would you dismiss a client so quickly just because they tried to bargain? The most successful and wealthiest people in the world will always try to bargain. More often than not, they use it as a test to see how your respond.
If the only thing you see from your client is a paycheck, then the client doesn't feel valued, and may just take their business elsewhere. If you have unlimited clients and don't care about any of your clients and don't look at the big picture, that's your life, not mine. I don't have unlimited clients, I don't have unlimited money, I always want more money, I always want more connections.
You never know when someone is going to refer you to a whale, or turn out to be a whale themselves, and invite you onto a huge project as a partner or offer a huge contract. But no, you are so ignorant that you just send them to Fiverr because you refuse to bargain, and you refuse to take jobs below $XXX because they are beneath you. OK buddy. Cool life you live. Must be nice having a garage full of lambos.