Let's take a world with 10 people and 4 jobs:

• Engineer (high-education, high-pay): 2 men and 1 woman
• Teacher (high-education, low-pay): 1 man and 1 woman
• Plumber (low-education, high-pay): 1 man and 1 woman
• Cleaner (low-education, low-pay): 1 man and 2 women

If you control for education:

• 50% of uneducated men have high-paying jobs, versus 33% of uneducated women
• 66% of educated men have high-paying jobs, versus 50% of educated women

... and if you control for pay:

• 66% of high-salary men are educated, versus 50% of high-salary women
• 50% of low-salary men are educated, versus 33% of low-salary women

You can also check that for both men and women, income and education are correlated.