Having his creations be acquired for substantial sums by nervous corporations (who proceed to let them die) serves no one but Andreeson himself and his investors.
As a consumer, I value programs like netpbm, feh, ffmpeg and mplayer far more than Netscape and all the monolithic browser crap that has followed. I can rely on the former programs year after year.
By contrast, Andreeson offers little to consumers. His best programmer at Netscape was put out of job and now runs a nightclub. I think that says it all. Andreeson is not improving the world of software and technology. He has no intention of building things that last. He's in it to make a quick buck. Quality and consumers be damned.