Recent Posts Widget Ignoring 'before_widget' and 'after_widget'

Here’s my register_sidebar code:

register_sidebar( array(
	'name' => 'Footer',
	'id' => 'footer',
	'before_widget' => '<li id="%1$s" class="widget %2$s col-md-4">',
	'after_widget'  => '</li>',
	'before_title' => '<h4>',
	'after_title' => '</h4>',
) );

Most of the widgets render fine with this code. However, the recent comments widget seemingly couldn’t care less.

This screenshot shows the moster widget plugin’s output and the inconsistency I’m posting about is highlighted:

https://www.dropbox.com/s/psdo46pz7fbl8m2/Screen%20Shot%202015-04-14%20at%209.28.30%20AM.jpg?dl=0

https://www.ads-software.com/plugins/monster-widget/