Hello,
The second field called "price" is the "retail price" that you can find also in the HIkaShop backend.
If you have a translation override to change the field name, it can be confusion for the vendor (and customer)
But if you're not going to use the retail price, you can just disable the ACL.
One thing which can be improved in a future release is to make the product price in edition during a product creation, just like HikaShop is doing in the backend (and only in creation).
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.