Suppose BusinessCorp finds SoftwareProductA online. SoftwareProductA is made under a BSD License. Now BusinessCorp wants to monetize SofwareProductA, so it makes non-trivial adjustments to SoftwareProductA to create SoftwareProductB. The way that BusinessCorp wants to make money with SoftwareProductB is to distribute it as a free and open source product, but to use it as a platform for other monetary apps (for example, SoftwareProductB might be something like the Android OS, with the Android App store being the indirect monetization strategy).
Even though BusinessCorp wants to distribute SoftwareProductB as a free and open-source product, it wants to protect itself from competitors. For example, it wants to prevent other companies from taking SoftwareProductB, incrementally changing it into SoftwareProductC, and then monetizing it either indirectly as a platform or directly through licensing fees.
What license can BusinessCorp use to best protect SoftwareProductB from competitors in this way? Is there a license which allows only BusinessCorp to monetize SoftwareProductB (either indirectly as a platform or directly through licensing fees) and its derivatives, but to still keep it open-source for hobbyists to tinker with? And how does the original BSD license that SoftwareProductA was written under affect all of this?