Mine is a piece of aluminum angle bolted to the cross tube behind the bottom bracket found on most frames. No corrective angle was required.

Can you use a file to modify the angle of the top surface of your center stand where it sits against the frame plate so that it can be installed at a better angle? I am a hobbyist machinist and enjoy tackling problems such as the one you have but would not try anything without having both the stand and bike in front of me to work with.

You might also email Specialized to find out if they have any recommendations for a better center stand for your bike. You did mention Globe so I presume it is a Specialized Globe.