I bought Pascal, and then Modula-2, for my Atari ST. They were cheaper or the same price as a C compiler. Though C was a better choice for that system, since the OS was written in it and the calling conventions, etc. were all C.
On the Macintosh (and Lisa before it), by contrast, Pascal was the way to go.
So I think part of the reason C won out over Wirth languages back in the late 80s was because it just "fit" better with the systems that were emergent then. The swing towards Unix/Posix or Unix-like machines meant that the syscall interface for most things was defined with C calling conventions, and most example code was done that way.
And C++ also became quite popular, while the various object oriented Wirth / Wirth-like languages were not well standardized or available.
By the time this came around, universities taught C++ or Java in their intro to programming. Students used those. Then found the free version from discussion with peers.
One might ask how NPM succeeded and well, it was the only way to write code on the Web, so people had to use it, one way or another.
Nowadays, no-one blinks an eyelid when `npm install foo` drops 1000 packages in your node_modules directory.
https://www.embarcadero.com/products/delphi/product-editions
Otherwise Delphi is an excellent product.
However, since Delphi doesn't sell well we have the classic catch-22 situation - there aren't enough developers and the existing ones are retiring and hardly any new developers are using Delphi. So naturally companies are reluctant to commit to Delphi for new development.... further reducing the chance of bringing in more developers.
TP executables were fast. Compared favorably to C++. The compile-time was also very fast.