I think you can earn if you get clicks from countries like US and Canada if you are an asian country member and vice versa .
To get higher money for a click, you need to find keywords where the bids are high. The more competitive a keyword is, the more it pays. Advertisers will tend to bid higher to reach their market. Another factor is the market from where you get your clicks. Remember for AdSense, the content of your webpage is king. Your AdSense will display ads based on the content on your webpage. I remember that I saw a website mentioning click up to $56. The subject was rare disease. The advertisers were lawyers bidding really high to get new customers. In that case, lawyers could be paid hundreds of thousands of dollars from a client. That is why it is so high. In conclusion, find very competitive markets with large advertisers.