[ubuntu] Accidentally changed permissions... Am I screwed?

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http://ubuntuforums.org – I had two tabs open, both where I typed in "sudo -s". In one tab, I was in a different directory where I had to execute "chmod 755 *" In the other tab, I was messing with the brightness by doing "echo 1000 > /sys/class/backlight/intel_backlight/brightness". I accidentally executed "chmod 755 *" in two this tab. I never changed directories in this tab and I didn't do it recursively or use "-R" with chmod. Did I mess up? I encrypted my home folder during installation, but would chmod affect anything or make my files more/less secure/accessible (Hardware)