The Ten Principles of the UN Global Compact cover areas related to human rights, labor, environment, and anti-corruption. Principle 6 specifically states the elimination of discrimination in respect of employment and occupation, which includes ensuring fair wages. However, paying different wages in different parts of the world for a given job classification can be acceptable if it reflects local living standards and economic conditions, ensuring fair compensation in each context.

Preventing a group of employees from forming a collective bargaining (union) group violates Principle 3, which supports the right to collective bargaining.

Requiring an individual to pay a fee for consideration in hiring or promotion decisions breaches principles related to non-discrimination and fair labor practices.

Withholding certain employment opportunities from specific groups of people directly violates Principles 1 and 6, which promote human rights and anti-discrimination.

References:

United Nations Global Compact. (2021). "The Ten Principles of the UN Global Compact."

International Labour Organization (ILO). (2021). "Global Wage Report 2020-21."