Commenting on contemporary political parties and systems in light of Quranic principles involves applying the general ethical guidelines provided in the Quran to evaluate their practices. Here’s a framework based on Quranic teachings to assess modern political entities:

1. **Justice and Fairness**: The Quran emphasizes the need for justice in all matters (Quran 4:135). If a political party or system perpetuates injustice, discrimination, or inequality, it stands in opposition to these teachings.

2. **Integrity and Honesty**: The Quran condemns corruption and bribery (Quran 2:188). A political system rife with corruption, dishonesty, or lack of transparency is contrary to Quranic principles.

3. **Accountability**: Leaders are accountable to the people and to Allah (Quran 4:58). If a political system lacks mechanisms for holding leaders accountable for their actions, it deviates from the Quranic mandate.

4. **Consultation and Participation**: The Quran advocates for consultation (Shura) in decision-making (Quran 42:38). Systems that exclude public participation or fail to seek the input of the governed population do not align with this principle.

5. **Avoiding Mischief and Corruption**: The Quran warns against causing mischief and corruption on earth (Quran 2:60, 28:77). Political practices that lead to social, economic, or environmental harm are inconsistent with Islamic teachings.

Applying these principles, if a contemporary political party or system is characterized by corruption, injustice, lack of accountability, exclusionary practices, and harmful policies, it can be considered misaligned with Quranic guidance. Such a system should be reformed to adhere to the values of justice, integrity, accountability, and public welfare as outlined in the Quran.

Individuals and communities have a responsibility to strive for better governance that reflects these ethical standards, promoting a more just and equitable society.