Actually, for Owen Bertram, he never intended to keep the Mechanical Dao Soldiers and Spiritual Pomegranate Sniper as his treasures - as long as the price was right, he was willing to sell them.
Then, he would use the obtained resources to continue the development of the next generation.
During the process of refining this Mechanical Dao Soldier, Owen had some deeper thoughts. After using it for a few days and summarizing the experience, he already had a rough idea for the new Mechanical Dao Soldiers.
If someone was willing to take them off his hands, Owen would be more than happy to oblige.
This is the fundamental difference in the ideology between Owen Bertram and those homegrown cultivators from the Eight Desolates.
The only issue is that in a world like the Eight Desolates, where the weak are prey to the strong, without enough strength to protect oneself, selling the Mechanical Dao Soldiers for a good price would be a pipe dream.