It's not about money. There are plenty of FOSS non-profit software projects that want to be able to distribute their apps and not have to deal with all this fragmentation.
If you develop a QML app and want it to compile and run properly on all distros out there you need to code use a very low common denominator version of Qt and the associated QML components (versioning for which is only checked at runtime).
Too many people expect to be paid for their work, while not giving anything to upstream only entitlement of what should be provided as free beer.
For those there is GPL license for Qt.