Without Using Third Party Plugin is Elgg Work or not?

Without Using Third Party plugin is elgg work or not?

i downloaded Simple Commence and i will enable it , it is working what will happen if i disable plugin is my elgg work or not because i saw text on the plugin page that is:

" without all those 3rd-party plugins - Elgg would be nothing!- - - "

plugin name is : Embrache Simple Commerce for Elgg 1.8