Microsoft has to compete with other cloud providers on security. Unlike Boeing who has no domestic competition. Any of Google, Amazon, or Oracle would love to find out that Microsoft is decrypting user data to sell to partners because they would be screaming to the high heavens that O365/Azure is insecure and enterprises must switch to their solutions. SaaS/IaaS subscriptions are much more profitable than selling user data, there is a near 0 chance that Microsoft is improperly handling enterprise data (on purpose)