They are certainly not incompatible.
We want to have sustainable facilities. However, being sustainable also means being responsible from the social, environmental and economic perspectives. So we have to make sure the facilities we put in place do a good job of meeting the needs of the economy and can be made profitable.
Obviously, that sometimes requires government assistance, since the facilities have a very long lifespan and the resources for meeting their needs may be beyond the reach of the local port authority.
In any event, there is certainly no conflict between being fiscally responsible and developing port facilities.