I believe the 'spirit' of the law is that it is against buddhist thinking that anyone should 'profit' off the image of buddha.

Wishful thinking.

Just look at the amulet trade, or don't.

The intent of the law is to protect the looting of antiquities.


US Returns Looted Ancient Artifacts to Thailand

Law on Ancient Monuments, Antiques, Objects of Art and National Museums B.E. 2504 (1961)


The fact that there is a process in place to export 'acceptable' Buddha images, for which one assumes a price was paid, shoots a hole in your belief.


Newly cast Buddha images in complete condition can be exported for worship, cultural exchange or educational purposes with licenses issued by the Fine Arts Department.