That's great for the organization as a whole. But you have your own systems project to deliver. Consider the following benefits of integration. Having a broader perspective usually results in a more solid systems foundation. Demonstrate your strategic perspective and corporate citizenship to your enterprise.
Strategic thinkers are more likely to move up in organizations.
Reduce post-production problems such as systems integration fixes and data inconsistency issues between systems. Save you time if the enterprise is providing useful re-usable components. One consideration is whether your enterprise has the right environment for integration. Management needs to reward good corporate citizenship and project integration. The culture of the enterprise is team oriented.