Almost all hackers are interested in cracking and damaging computer networks and to otherwise show off their skills.

This statement is a common misconception about hackers. In reality, not all hackers are interested in causing damage or showing off their skills. Some hackers use their skills for ethical purposes such as improving system security, finding vulnerabilities, and developing new technologies. These hackers are known as White Hat or Ethical Hackers. There are also Gray Hat and Black Hat hackers who use their skills for malicious purposes, but not all hackers fall under this category.